Cita APA (7a ed.)

Pontifex, M. (1960). Freedom and providence. Hawthorn Books, Publishers.

Cita Chicago Style (17a ed.)

Pontifex, Mark. Freedom and Providence. New York: Hawthorn Books, Publishers, 1960.

Cita MLA (9a ed.)

Pontifex, Mark. Freedom and Providence. Hawthorn Books, Publishers, 1960.