Gaya APA

Polisby, N, W., Dahl, R, A. (1964). Congress and The Presidency (Ed. 1). America: Prentice-Hall, INC..

Gaya MLA

Polisby, Nelson, W.., Dahl, Robert, A.. "Congress and The Presidency". Ed. 1 America: Prentice-Hall, INC., 1964. Text.