Παραπομπή APA

Geldard, F. A. (1962). Fundamentals of psychology. John Wiley.

Παραπομπή Chicago Style

Geldard, Frank A. Fundamentals of Psychology. New York: John Wiley, 1962.

Παραπομπή MLA

Geldard, Frank A. Fundamentals of Psychology. John Wiley, 1962.