APA (7th ed.) Citation

Heidegger, M., Anderson, J. M., & Freund, E. H. (1969). Discourse on thinking. Harper & Row.

Chicago Style (17th ed.) Citation

Heidegger, Martin, John M. Anderson, and E. Hans Freund. Discourse on Thinking. New York: Harper & Row, 1969.

MLA (9th ed.) Citation

Heidegger, Martin, et al. Discourse on Thinking. Harper & Row, 1969.