English, F. W., & Kaufman, R. (1975). Needs assessment: A focus for curriculum development. Assoc. for Supervision and Curriculum Development.
Chicago-Zitierstil (17. Ausg.)English, Fenwick W., und Roger Kaufman. Needs Assessment: A Focus for Curriculum Development. Washington: Assoc. for Supervision and Curriculum Development, 1975.
MLA-Zitierstil (9. Ausg.)English, Fenwick W., und Roger Kaufman. Needs Assessment: A Focus for Curriculum Development. Assoc. for Supervision and Curriculum Development, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.