Cita APA (7th ed.)

Little, P. E. (1987). Know why you believe (Exp & Updated.). Victor Books.

Cita Chicago (17th ed.)

Little, Paul E. Know Why You Believe. Exp & Updated. Illinois: Victor Books, 1987.

Cita MLA (9th ed.)

Little, Paul E. Know Why You Believe. Exp & Updated. Victor Books, 1987.