Dyfyniad APA

Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. (1974). Agricultural policy in the United States. O.E.C.D..

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. Agricultural Policy in the United States. Paris: O.E.C.D., 1974.

Dyfyniad MLA

Organisation for Economic Co-operation and Development. Working Party on Agricultural Policies. Agricultural Policy in the United States. O.E.C.D., 1974.

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