University of Guyana Library Search for 'callnum:LB1590 .3 B76'

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Alexandria, Va. : Association for Supervision and Curriculum Development, 1993 . viii, 136 p. : 00871202115 (pbk)

Alexandria, Va. : A.S.C.D., 2002 . [x], 155 p. : . 0871206587 (pbk.)

Alexandria, Va. : A.S.C.D., 1995 . vi, [143] p. : . 0871202557 (pbk.)

Alexandria, Va. : A.S.C.D., 2010 . [vi],159 p. : . 9781416610489 (pbk.)