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- 77557780%2F%2Fr973 contributor B3186464.
- 77557780%2F%2Fr973 created "1977-1982.".
- 77557780%2F%2Fr973 date "1977".
- 77557780%2F%2Fr973 date "1977-1982.".
- 77557780%2F%2Fr973 dateCopyrighted "1977-1982.".
- 77557780%2F%2Fr973 description "Includes bibliographies.".
- 77557780%2F%2Fr973 description "v. 1. Present status of research and trends -- v. 2. Cost and effectiveness -- v. 3. Cost and effectiveness overview and synthesis.".
- 77557780%2F%2Fr973 extent "3 v. ;".
- 77557780%2F%2Fr973 identifier "9231014234 (pbk. : v. 1)".
- 77557780%2F%2Fr973 isPartOf "Educational methods and techniques ; 1".
- 77557780%2F%2Fr973 issued "1977".
- 77557780%2F%2Fr973 issued "1977-1982.".
- 77557780%2F%2Fr973 language "eng".
- 77557780%2F%2Fr973 publisher "Paris : Unesco,".
- 77557780%2F%2Fr973 subject "371.3/07/8 19".
- 77557780%2F%2Fr973 subject "Educational technology.".
- 77557780%2F%2Fr973 subject "LB1028.3 .E27".
- 77557780%2F%2Fr973 tableOfContents "v. 1. Present status of research and trends -- v. 2. Cost and effectiveness -- v. 3. Cost and effectiveness overview and synthesis.".
- 77557780%2F%2Fr973 title "The Economics of new educational media.".
- 77557780%2F%2Fr973 type "text".