Dyfyniad APA

Cochran, C. E. (1990). American public policy: An introduction (3rd ed.). St. Martin's Press.

Dyfyniad Arddull Chicago

Cochran, Clarke E. American Public Policy: An Introduction. 3rd ed. New York, NY: St. Martin's Press, 1990.

Dyfyniad MLA

Cochran, Clarke E. American Public Policy: An Introduction. 3rd ed. St. Martin's Press, 1990.

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