Boston, R. E. (1972). How to write and use performance objectives to individualize instruction. Educational Technology Publications.
Citace podle Chicago (17th ed.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Englewood Cliffs, N. J.: Educational Technology Publications, 1972.
Citace podle MLA (8th ed.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Educational Technology Publications, 1972.
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