APA (7th ed.) Citation

Davis, J. W. (1970). The national executive branch: An introd. Free Press [u.a.].

Chicago Style (17th ed.) Citation

Davis, James W. The National Executive Branch: An Introd. New York [u.a.]: Free Press [u.a.], 1970.

MLA (9th ed.) Citation

Davis, James W. The National Executive Branch: An Introd. Free Press [u.a.], 1970.