Conservation in the United States A. F. Gustafson, H. Ries, C. H. Guise, [and] W. J. Hamilton, Jr.

Conservation in the United States A. F. Gustafson, H. Ries, C. H. Guise, [and] W. J. Hamilton, Jr.

Xehetasun bibliografikoak
Egile nagusia: Gustafson, Axel Ferdinand 1880-
Beste egile batzuk: Ries, Heinrich 1871-, Guise, Cedric Hay 1890-, Hamilton, William John 1902-
Formatua: Liburua
Hizkuntza:English
Argitaratua: Ithaca, N. Y. Comstock publishing company 1949.
Gaiak:
Natural resources.
United States > Economic conditions.