Gaya APA
A.Ferejohn, J. (1974).
Pork barrel politic: rivers and harbors legislation 1947-1968 .
California:
Stanford University Press.
Gaya MLA
A.Ferejohn, John.
"Pork barrel politic: rivers and harbors legislation 1947-1968".
California:
Stanford University Press,
1974.
Text.