APA (7th ed.) Citation

Mitchell, B. (1971). Theory of categories (4. print.). Acad. Pr.

Chicago Style (17th ed.) Citation

Mitchell, Barry. Theory of Categories. 4. print. New York, NY [u.a.]: Acad. Pr, 1971.

MLA (9th ed.) Citation

Mitchell, Barry. Theory of Categories. 4. print. Acad. Pr, 1971.