APA

Wulf M. M. C. J. d., . (1959). The system of Thomas Aquinas. New York: Dover.

Chicago

Wulf Maurice Marie Charles Joseph de, . 1959. The system of Thomas Aquinas. New York: Dover.

Harvard

Wulf M. M. C. J. d., . (1959). The system of Thomas Aquinas. New York: Dover.

MLA

Wulf Maurice Marie Charles Joseph de, . The system of Thomas Aquinas. New York: Dover. 1959.