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Parameters: Leff, Herbert L., 1944

TitleName(s)Description
Experience, environment, and human potentials / Herbert L. LeffLeff, Herbert L., 1944; Oxford University Press, Inc.523 p.
Turning learning inside out / Herbert L. Leff and Ann NevinLeff, Herbert L., 1944; Nevin, Ann, 1937; Tanner, Joey294 p.
Playful perception : Choosing how to experience your world / Herbert L. LeffLeff, Herbert L., 1944; Waterfront Books, Inc.161 p.