APA (7th ed.) Citation

Drake, D. (1968). Essays in critical realism: A co-operative study of the problem of knowledge. Gordian Press.

Chicago Style (17th ed.) Citation

Drake, Durant. Essays in Critical Realism: A Co-operative Study of the Problem of Knowledge. New York: Gordian Press, 1968.

MLA (9th ed.) Citation

Drake, Durant. Essays in Critical Realism: A Co-operative Study of the Problem of Knowledge. Gordian Press, 1968.