Hairy-vetch seed production in the United States
Kephart, L.W., McKee, Roland
Hairy-vetch seed production in the United States - Washington 1920 - 1-32 p. - Seed, Production United States Department of Agriculture. Department Bulletin No. 876 .
Hairy-vetch seed production in the United States - Washington 1920 - 1-32 p. - Seed, Production United States Department of Agriculture. Department Bulletin No. 876 .