Distinguishing the species of Brassica by their seed /
by Albina F. Musil.
- Washington, D.C. : U.S. Dept. of Agriculture, 1948.
- 35 p. : ill. ; 23 cm.
- Miscellaneous publication (United States. Dept. of Agriculture) ; no. 643 .
- Miscellaneous publication (United States. Department of Agriculture) ; no. 643. Miscellaneous publication (United States. Department of Agriculture) ; no. 643. .
Caption title. Contribution from Bureau of Plant Industry, Soils, and Agricultural Engineering.