Cita APA (7th ed.)
Johnson, J. A., & Pizzi, M. (1990). Productive living strategies for people with AIDS. Harrington Park Press.
Cita Chicago (17th ed.)
Johnson, Jerry A., i Michael Pizzi. Productive Living Strategies for People with AIDS. New York ; London: Harrington Park Press, 1990.
Cita MLA (9th ed.)
Johnson, Jerry A., i Michael Pizzi. Productive Living Strategies for People with AIDS. Harrington Park Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.