APA (7th ed.) Citation

Jordan, W., & Jordan, R. W. (1990). Ancient concepts of philosophy (1. publ.). Routledge.

Chicago Style (17th ed.) Citation

Jordan, William, and Robert William Jordan. Ancient Concepts of Philosophy. 1. publ. London [u.a.]: Routledge, 1990.

MLA (8th ed.) Citation

Jordan, William, and Robert William Jordan. Ancient Concepts of Philosophy. 1. publ. Routledge, 1990.