APA aipamena

Swartz, W. G. (1961). American governmental problems (2d ed.). Van Nostrand.

Chicago Style aipamena

Swartz, Willis G. American Governmental Problems. 2d ed. Princeton, N. J: Van Nostrand, 1961.

MLA aipamena

Swartz, Willis G. American Governmental Problems. 2d ed. Van Nostrand, 1961.