APA (7th ed.) Citation

Erasmus, D., Winter, E. F., & Luther, M. (1997). Discourse on free will. Continuum Pub.

Chicago Style (17th ed.) Citation

Erasmus, Desiderius, Ernst F. Winter, and Martin Luther. Discourse on Free Will. New York: Continuum Pub, 1997.

MLA (9th ed.) Citation

Erasmus, Desiderius, et al. Discourse on Free Will. Continuum Pub, 1997.