Παραπομπή APA

Polsby, N. W. (1964). Congress and the Presidency. Prentice-Hall of India.

Παραπομπή Chicago Style

Polsby, Nelson W. Congress and the Presidency. New Jersey: Prentice-Hall of India, 1964.

Παραπομπή MLA

Polsby, Nelson W. Congress and the Presidency. Prentice-Hall of India, 1964.