MLA

Gill, Merton M. Topography and Systems In Psychoanalytic Theory. 2nd print. New York (N.Y.): International universities press, 1972.

APA

Gill, M. M. (1972). Topography and systems in psychoanalytic theory. 2nd print. New York (N.Y.): International universities press.

Chicago

Gill, Merton M. Topography and Systems In Psychoanalytic Theory. 2nd print. New York (N.Y.): International universities press, 1972.