Agricultural varieties of the cowpea and immediately related species.
Piper, Charles V. 1867-1926.
Agricultural varieties of the cowpea and immediately related species. By C.V. Piper ... - Washington, Govt. Print. Off., 1912. - 160 p. xii pl. (incl. front.) 23 cm. - United States. Department of Agriculture. Bureau of Plant Industry. Bulletin no. 229 . - Bulletin (United States. Bureau of Plant Industry), no. 229. .
agr12000468
Cowpea.
QK1 / .U45 no. 229
Agricultural varieties of the cowpea and immediately related species. By C.V. Piper ... - Washington, Govt. Print. Off., 1912. - 160 p. xii pl. (incl. front.) 23 cm. - United States. Department of Agriculture. Bureau of Plant Industry. Bulletin no. 229 . - Bulletin (United States. Bureau of Plant Industry), no. 229. .
agr12000468
Cowpea.
QK1 / .U45 no. 229