Dyfyniad APA

Berman, D. R. (1988). American government, politics, and policy making (Third edition.). Prentice-Hall.

Dyfyniad Arddull Chicago

Berman, David R. American Government, Politics, and Policy Making. Third edition. Englewood Cliffs, New Jersey: Prentice-Hall, 1988.

Dyfyniad MLA

Berman, David R. American Government, Politics, and Policy Making. Third edition. Prentice-Hall, 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.