Programmed learning aid for thinking and conceptual behavior
Egile nagusia: | |
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Beste egile batzuk: | , |
Formatua: | Liburua |
Hizkuntza: | English |
Argitaratua: |
Homewod, Illinois
Learning Systems Company
©1975.
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Saila: | Irwin programmed learning aid series
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Gaiak: |