1.
Turning Learning Inside Out A Guide for Suing Any Subject to Enrich Life and Creativity
by Nevin, Ann, Leff, Herbert L.
ISBN: 9781569760000
List Price: $29.00
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Experience, environment, and human potentials
by Leff, Herbert L.
ISBN: 9780195022544
List Price: $16.95
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Playful Perception: Choosing how to Experience Your World
by Leff, Herbert L.
ISBN: 9780914525004
List Price: $9.95
4.
Experience, Environment and Human Potentials
by Leff, Herbert L.
ISBN: 9780195022551
List Price: $12.95
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Playful Perception: Choosing how to Experience Your World
by Leff, Herbert L.
ISBN: 9780914525011
List Price: $15.95