Boston, R. E. (1972). How to write and use performance objectives to individualize instruction. Educational Technology Publications.
Chicago-referens (17:e uppl.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Englewood Cliffs, N. J.: Educational Technology Publications, 1972.
MLA-referens (8:e uppl.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Educational Technology Publications, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.