Dyfyniad APA

Gregg, P. M. (1976). Problems of Theory in Policy Analysis. Lexington Books.

Dyfyniad Arddull Chicago

Gregg, Phillip M. Problems of Theory in Policy Analysis. Toronto: Lexington Books, 1976.

Dyfyniad MLA

Gregg, Phillip M. Problems of Theory in Policy Analysis. Lexington Books, 1976.

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