Northern Prairie Wildlife Research Center
Aarssen, L.W., I.V. Hall, and K.I.N Jensen. 1986. The biology of Canadian weeds.
76. Vicia angustifolia L., V. cracca L., V. sativa L. V. tetrasperma (L.)
Schreb., and V. villosa Roth. Canadian Journal of Plant Science 66(3):
711-737.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/literatr/aprs/sample.htm
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