Dyfyniad APA

McNichols, T. J. (1977). Policymaking and executive action (5th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

McNichols, Thomas J. Policymaking and Executive Action. 5th ed. New York: McGraw-Hill, 1977.

Dyfyniad MLA

McNichols, Thomas J. Policymaking and Executive Action. 5th ed. McGraw-Hill, 1977.

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