Gaya APA

Ferejohn, J, A. (1974). Pork Barrel Politics: Rivers and Harbors Legislation, 1947-1968 . California: Stanord Universiy Press.

Gaya MLA

Ferejohn, John, A.. "Pork Barrel Politics: Rivers and Harbors Legislation, 1947-1968". California: Stanord Universiy Press, 1974. Text.