Gaya APA

Keefe, W, J. et al (1983). American Democracy : Institutions, Politics, and Policies (The Dorsey Series in Political Science). Illinois: The Dorsey Press.

Gaya MLA

Keefe, William, J.. et al. "American Democracy : Institutions, Politics, and Policies". The Dorsey Series in Political Science Illinois: The Dorsey Press, 1983. Text.