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AITCHISON, J. 1955. On the distribution of a positive random variable having a 
	discrete probability mass at the origin. J. Am. Stat. Assoc. 50:901-908.

ALLEN, S. H., and J. M. SAMUELSON. 1987. Precision and bias of a summer aerial 
	transect census of pronghorn antelope. Prairie Nat. 19:19-24.

BEAR, G. D., G. C. WHITE, L. H. CARPENTER, R. B. GILL, and D. J. ESSEX. 1989. 
	Evaluation of aerial mark-resighting estimates of elk populations. J. 
	Wildl. Manage. 53:908-915.

BERGERUD, A. T., and F. MANUEL. 1969. Aerial census of moose in central 
	Newfoundland. J. Wildl. Manage. 33:910-916.

CAUGHLEY, G. 1977. Sampling in aerial survey. J. Wildl. Manage. 41:605-615. 

______. 1979. Sampling techniques for aerial censuses. Pages 9-14 in Aerial
        surveys of fauna populations. Australian Gov. Publ. Serv., Canberra.

COCHRAN, W. G. 1977. Sampling techniques. Third ed. John Wiley and Sons, New 
	York, N.Y. 428pp.

CONROY, M. J., J. R. GOLDSBERRY, J. E. HINES, and D. B. STOTTS. 1988. Evaluation 
	of aerial transect surveys for wintering American black ducks. J. Wildl. 
	Manage. 52:694-703.

DAVIS, D. E., and R. L. WINSTEAD. 1980. Estimating the numbers of wildlife 
        populations. Pages 221-245 in S. D. Schemnitz, ed. Wildlife 
        management techniques manual. Fourth ed. The Wildl. Soc., Washington, 
        D.C. 686pp.

FINLEY, K. J., J. P. HICKIE, and R. A. DAVIS. 1987. Status of the beluga, 
	Delphinapterus leucas, in the Beaufort Sea. Can. Field-Nat.
	101:271-278.

FIRCHOW, K. M., M. R. VAUGHAN, and W. R. MYTTON. 1990. Comparison of aerial 
        survey techniques for pronghorns. Wildl. Soc. Bull. 18: 18-23.

JOLLY, G. M. 1969. Sampling methods for aerial censuses of wildlife populations. 
	Pages 46-49 in W. G. Swank, R. M. Watson, G. H. Freeman, and T. 
	Jones, eds. Proc. workshop on the use of light aircraft in wildlife 
	management in East Africa. E. Afr. Agric. For. J. 34(spec. issue).

MOORE, D. S., and G. P. McCABE. 1993. Introduction to the practice of statistics. 
	Second ed. W. H. Freeman, New York, N.Y. 854pp.

PENNINGTON, M. 1983. Efficient estimators of abundance for fish and plankton 
	surveys. Biometrics 39:281-286.

POJAR, T. M., D. C. BOWDEN, and R. B. GILL. 1995. Aerial counting experiments to 
	estimate pronghorn density and herd structure. J. Wildl. Manage. 
	59:117-128.

REDMOND, R. L., T. K. BICAK, and D. A. JENNI. 1981. An evaluation of breeding 
	season census techniques for long-billed curlews (Numenius americanus). 
	Pages 197-201 in C. J. Ralph and J. M. Scott, eds. Estimating numbers 
	of terrestrial birds. Cooper Ornithol. Soc., Stud. Avian Biol. 6.

SEBER, G. A. F. 1982. The estimation of population abundance. Second ed. Macmillan 
	Publ., New York, N.Y. 654pp.
	
______.	1986. A review of estimating animal abundance. Biometrics 42:267-292.
	
______.	1992. A review of estimating animal abundance II. Int. Stat. Rev. 
        60:129-166.

SINIFF, D. B., and R. O. SKOOG. 1964. Aerial censusing of caribou using 
        stratified random sampling. J. Wildl. Manage. 28:391-401.

STEEL, R. G. D., and J. H. TORRIE. 1980. Principles and procedures of statistics. 
	Second ed. McGraw-Hill, New York, N.Y. 633pp.

TAYLOR, L. R. 1961. Aggregation, variance and the mean. Nature 189:732-735.

THOMPSON, S. K. 1992. Sampling. John Wiley and Sons, New York, N.Y. 343pp.

WHITE, G. C., R. M. BARTMANN, L. H. CARPENTER, and R. A. GARROTT. 1989. 
        Evaluation of aerial line transects for estimating mule deer densities. 
        J. Wildl. Manage. 53:625-635.

WOLFE, M. L., and J. F. KIMBALL. 1989. Comparison of bison population estimates 
	with a total count. J. Wildl. Manage. 53:593-596.

WOLTER, K. M. 1984. An investigation of some estimators of variance for systematic 
	sampling. J. Am. Stat. Assoc. 79:781-790.

ZARNOCH, S. J. 1976. Evaluation of estimators of population size based on 
        simulation techniques. Ph.D. Thesis, Virginia Polytech. Inst. and State 
        Univ., 	Blacksburg. 191pp.

ZINGER, A. 1980. Variance estimation in partially systematic sampling. J. Am. 
        Stat. Assoc. 75:206-211.