Παραπομπή APA

Keefe, W. J. O. (1964). The American legislative process: Congress and the states. Prentice Hall.

Παραπομπή Chicago Style

Keefe, William J Ogul. The American Legislative Process: Congress and the States. New Jersey: Prentice Hall, 1964.

Παραπομπή MLA

Keefe, William J Ogul. The American Legislative Process: Congress and the States. Prentice Hall, 1964.