Citazione Stile APA (7a Edizione)

Titus, H. H. (1970). Living issues in philosophy: An introductory textbook (5th ed.). Van Nostrand Reinhold.

Citazione stile Chigago Style (17a edizione)

Titus, Harold H. Living Issues in Philosophy: An Introductory Textbook. 5th ed. New York: Van Nostrand Reinhold, 1970.

Citatione MLA (9a ed.)

Titus, Harold H. Living Issues in Philosophy: An Introductory Textbook. 5th ed. Van Nostrand Reinhold, 1970.