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Lua i Stíl Chicago (17ú heag.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Englewood Cliffs, N. J.: Educational Technology Publications, 1972.
Lua MLA (8ú heag.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Educational Technology Publications, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.