Não informado. (1953). World agricultural situation. U.S. Department of Agriculture, Economic Research Service.
Chicago-Zitierstil (17. Ausg.)Não informado. World Agricultural Situation. Washington: U.S. Department of Agriculture, Economic Research Service, 1953.
MLA-Zitierstil (8. Ausg.)Não informado. World Agricultural Situation. U.S. Department of Agriculture, Economic Research Service, 1953.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.