The production of hairy vetch seed.
Piper, Charles V. 1867-1926.
The production of hairy vetch seed. By C.V. Piper ... and Edgar Brown ... - Washington, Govt. print. off., 1915. - 8 p. incl. tables. 23 cm. - U.S. Dept. of agriculture. Bureau of plant industry. Circular no. 102 . - United States. Bureau of Plant Industry. Circular ; no. 102. .
agr12001670
Vetch.
SB19 / .A33 no. 102
The production of hairy vetch seed. By C.V. Piper ... and Edgar Brown ... - Washington, Govt. print. off., 1915. - 8 p. incl. tables. 23 cm. - U.S. Dept. of agriculture. Bureau of plant industry. Circular no. 102 . - United States. Bureau of Plant Industry. Circular ; no. 102. .
agr12001670
Vetch.
SB19 / .A33 no. 102