APA (7th ed.) Citation

Mitchell, B. (1967). Theory of categories (2nd print.). New York [u.a.].

Chicago Style (17th ed.) Citation

Mitchell, Barry. Theory of Categories. 2nd print. New York [u.a.]: New York [u.a.], 1967.

MLA (9th ed.) Citation

Mitchell, Barry. Theory of Categories. 2nd print. New York [u.a.], 1967.