Land classification in the United States Report of the Land committee to the National resources planning board.

MLA

United States. Land classification in the United States Report of the Land committee to the National resources planning board. Washington : U.S. Govt. print. off., 1941.

APA

United States. (1941). Land classification in the United States Report of the Land committee to the National resources planning board. Washington : U.S. Govt. print. off..

Chicago

United States. Land classification in the United States Report of the Land committee to the National resources planning board. Washington : U.S. Govt. print. off., 1941.