APA aipamena

Davis, J. S. (1939). On agricultural policy, 1926-1938. Food Research Institute.

Chicago Style aipamena

Davis, Joseph Stancliffe. On Agricultural Policy, 1926-1938. Stanford University, Calif: Food Research Institute, 1939.

MLA aipamena

Davis, Joseph Stancliffe. On Agricultural Policy, 1926-1938. Food Research Institute, 1939.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.