Gaya APA
Polsby, N, W.
(1964).
Congress and the presindency / Nelson W. Polsby
(
cet.3)
.
:
Prentice-Hall.
Gaya MLA
Polsby, Nelson, W..
"Congress and the presindency / Nelson W. Polsby".
cet.3
:
Prentice-Hall,
1964.
Referensi.