APA (7th ed.) Citation

Van Kaam, A. (1969). Existential foundations of psychology. Image Books.

Chicago Style (17th ed.) Citation

Van Kaam, Adrian. Existential Foundations of Psychology. Garden City, N.Y: Image Books, 1969.

MLA (9th ed.) Citation

Van Kaam, Adrian. Existential Foundations of Psychology. Image Books, 1969.