Boston, R. E. (1972). How to write and use performance objectives to individualize instruction. Educational Technology Publications.
Chicago-Zitierstil (17. Ausg.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Englewood Cliffs, N. J.: Educational Technology Publications, 1972.
MLA-Zitierstil (8. Ausg.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Educational Technology Publications, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.