Perschbacher,Ruth. (1993). Assesment: The Cornerstone of activity programs. State College: Venture Publishing.
Chicago ZitierstilPerschbacher,Ruth. Assesment: The Cornerstone of Activity Programs. State College: Venture Publishing, 1993.
MLA ZitierstilPerschbacher,Ruth. Assesment: The Cornerstone of Activity Programs. State College: Venture Publishing, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.