Cita APA (7th ed.)
Houston, J. (1989). The transforming friendship. A lion book.
Cita Chicago (17th ed.)
Houston, James. The Transforming Friendship. Oxford: A lion book, 1989.
Cita MLA (9th ed.)
Houston, James. The Transforming Friendship. A lion book, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.