Gaya APA

Hardin, C, M., Swanson, C, P. (1952). **The politics of agriculture soil conservation and the struggle for ì power in rural Amerika . Illinois: Illinois: The Free Press; 1952.

Gaya MLA

Hardin, Charles, M., Swanson, Carl, P.. "**The politics of agriculture soil conservation and the struggle for ì power in rural Amerika". Illinois: Illinois: The Free Press; 1952, 1952. Text.