APA (7th ed.) Citation

Wolff, R. P. (2014). About philosophy (Eleventh edition, Pearson new international edition.). Pearson.

Chicago Style (17th ed.) Citation

Wolff, Robert Paul. About Philosophy. Eleventh edition, Pearson new international edition. Harlow, England: Pearson, 2014.

MLA (8th ed.) Citation

Wolff, Robert Paul. About Philosophy. Eleventh edition, Pearson new international edition. Pearson, 2014.

Warning: These citations may not always be 100% accurate.