APA (7e ed.) Bronvermelding

Hartmann, H. (1964). Essays on ego psychology: Selected problems in psychoanalytic theory. Intern. Univ. Press.

Chicago (17e ed.) Bronvermelding

Hartmann, Heinz. Essays on Ego Psychology: Selected Problems in Psychoanalytic Theory. New York: Intern. Univ. Press, 1964.

MLA (8e ed.) Bronvermelding

Hartmann, Heinz. Essays on Ego Psychology: Selected Problems in Psychoanalytic Theory. Intern. Univ. Press, 1964.