Descriptions of types of principal American varieties of onions - Magruder, Roy, 1900- (Washington, D.C. : U.S. Dept. of Agriculture, 1941)
Cover title.
Bibliography: p. 84-85.
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.
Keywords: Onions -- Varieties -- United States