Não informado. (1952). Marketing Research Report. U.S. Department of Agriculture, Bureau of Agricultural Economics.
Chicago-Zitierstil (17. Ausg.)Não informado. Marketing Research Report. Washington: U.S. Department of Agriculture, Bureau of Agricultural Economics, 1952.
MLA-Zitierstil (8. Ausg.)Não informado. Marketing Research Report. U.S. Department of Agriculture, Bureau of Agricultural Economics, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.