Farrell, P., & Lundegren, H. M. (1983). The process of recreation programming: Theory and technique (2nd ed.). Macmillan.
Cita Chicago (17th ed.)Farrell, Patricia, i Herberta M. Lundegren. The Process of Recreation Programming: Theory and Technique. 2nd ed. New York: Macmillan, 1983.
Cita MLA (9th ed.)Farrell, Patricia, i Herberta M. Lundegren. The Process of Recreation Programming: Theory and Technique. 2nd ed. Macmillan, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.