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| 1. |
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In Principle, In Practice
John H Falk, Lynn D Dierking, Susan Foutz
Inbunden. AltaMira Press,U.S., USA, 2007.
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| 2. |
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In Principle, In Practice
John H Falk, Lynn D Dierking, Susan Foutz
Häftad. AltaMira Press,U.S., USA, 2007.
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| 3. |
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Free-Choice Learning and the Environment
John H Falk, Joe E Heimlich, Susan Foutz
Inbunden. AltaMira Press,U.S., USA, 2009.
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| 4. |
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Free-Choice Learning and the Environment
John H Falk, Joe E Heimlich, Susan Foutz
Häftad. AltaMira Press,U.S., USA, 2009.
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