APA (7th ed.) Citation

Porter, R., & Tomaselli, S. (1989). The Dialectics of friendship. Routledge.

Chicago Style (17th ed.) Citation

Porter, Roy, and Sylvana Tomaselli. The Dialectics of Friendship. London ; New York: Routledge, 1989.

MLA (9th ed.) Citation

Porter, Roy, and Sylvana Tomaselli. The Dialectics of Friendship. Routledge, 1989.