Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. (1974). Agricultural policy in the United States. O.E.C.D..
Chicago-referens (17:e uppl.)Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. Agricultural Policy in the United States. Paris: O.E.C.D., 1974.
MLA-referens (8:e uppl.)Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. Agricultural Policy in the United States. O.E.C.D., 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.