APA (7th ed.) Citation

Jaki, S. L. (1990). The purpose of it all. Regnery-Gateway.

Chicago Style (17th ed.) Citation

Jaki, Stanley L. The Purpose of It All. Washington, D.C.: Regnery-Gateway, 1990.

MLA (9th ed.) Citation

Jaki, Stanley L. The Purpose of It All. Regnery-Gateway, 1990.