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Freytag, George F. ,  Debouck, Daniel G. ,  [Taxonomy, distribution, and ecology of the genus phaseolus (Leguminosae-papilionoideae) in North America, Mexico and Central America] ,  Taxonomy, distribution, and ecology of the genus phaseolus (Leguminosae-papilionoideae) in North America, Mexico and Central America

Toro Chica, Orlando ,  Tohme, Joseph M. ,  Debouck, Daniel G. ,  [Wild bean (Phaseolus vulgaris L.): description and distribution] ,  Wild bean (Phaseolus vulgaris L.): description and distribution