Citazione Stile APA (7a Edizione)

Holler, F. L. (1975). The information sources of political science ([2d ed.].). ABC-Clio.

Citazione stile Chigago Style (17a edizione)

Holler, Frederick L. The Information Sources of Political Science. [2d ed.]. Santa Barbara, Calif.: ABC-Clio, 1975.

Citatione MLA (8a ed.)

Holler, Frederick L. The Information Sources of Political Science. [2d ed.]. ABC-Clio, 1975.