Cita APA (7th ed.)
Titus, H. H. (1974). Living issues in philosophy (6th.ed.). D. Van Nostrand.
Cita Chicago (17th ed.)
Titus, Harold H. Living Issues in Philosophy. 6th.ed. New York: D. Van Nostrand, 1974.
Cita MLA (9th ed.)
Titus, Harold H. Living Issues in Philosophy. 6th.ed. D. Van Nostrand, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.