APA (7th ed.) Citation

Kernberg, O. F. (1980). Internal world and external reality: Object relations theory applied. J. Aronson.

Chicago Style (17th ed.) Citation

Kernberg, Otto F. Internal World and External Reality: Object Relations Theory Applied. New York: J. Aronson, 1980.

MLA (9th ed.) Citation

Kernberg, Otto F. Internal World and External Reality: Object Relations Theory Applied. J. Aronson, 1980.