Descriptions of types of principal American varieties of onions /
[by Roy Magruder ... et al.] ; prepared jointly by specialists of the United States Department of Agriculture, Massachusetts State College, and the Experiment Stations of California, Ohio, Texas, and Utah.
- Washington, D.C. : U.S. Dept. of Agriculture, 1941.
- 87 p., [30] p. of plates : ill. (some col.) ; 29 cm.
- Miscellaneous publication / United States Department of Agriculture ; no. 435 .
- Miscellaneous publication (United States. Department of Agriculture) ; no. 435. .
Cover title. Full page illustrations are numbered as plates (2-29). Contribution from Bureau of Plant Industry. Seventh of a series, Description of types of principal American varieties of various vegetables, issued by U.S. Bureau of Plant Industry. Cf. Introd., p.1. Includes index.