Grass varieties in the United States / A.A. Hanson. - Hanson, A. A. (Angus Alexander), 1922- (Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1959)
Caption title.
Revision of a preliminary ed. issued by U.S. Agricultural Research Service, Crops Research Division as its CR-12-58.
Includes index.
Keywords: Grasses -- Varieties -- United States