(1991). Activities in action: Proceedings of the National Association of Activity Professionals 1990 Conference. Haworth Press.
Chicago-Zitierstil (17. Ausg.)Activities in Action: Proceedings of the National Association of Activity Professionals 1990 Conference. New York: Haworth Press, 1991.
MLA-Zitierstil (9. Ausg.)Activities in Action: Proceedings of the National Association of Activity Professionals 1990 Conference. Haworth Press, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.