Conservation in the United States
By: by A.F. Gustafson...C.H. Guise...W.J. Hamilton, Jr. [and] H. Ries
Contributors: Ries, Heinrich, 1871-1951, joint author; Guise, Cedric H. (Cedric Hay), 1890- joint author; Hamilton, William John, 1902- joint author
Publisher: Comstock Pub. Co.
Published: 1945
Place of publication: Ithaca, N.Y
Language: eng
Number of pages: 477
Subjects: Natural resources; Economic conditions