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edited by Robert R. Leeper ; introduction by Neil P. Atkins
Association for Supervision and Curriculum Development c1971
Available at 13 libraries
edited by Robert R. Leeper
Association for Supervision and Curriculum Development, NEA c1969
Available at 1 libraries
edited by Robert R. Leeper ; introd. by Fred T. Wilhelms
Available at 3 libraries
Edited by James Raths and Robert R. Leeper
Association for Supervision and Curriculum Development c1966
edited by A. Harry Passow and Robert R. Leeper
Association for Supervision and Curriculum Development [1964]
Available at 4 libraries
