APA (7th ed.) Citation

Agustín, S., & Pontifex, M. (1955). The problem of free choice. Newman.

Chicago Style (17th ed.) Citation

Agustín, Santo, and Mark Pontifex. The Problem of Free Choice. New York ; Ramsey: Newman, 1955.

MLA (9th ed.) Citation

Agustín, Santo, and Mark Pontifex. The Problem of Free Choice. Newman, 1955.

Warning: These citations may not always be 100% accurate.