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By Fisher, Douglas,. Alexandria, VA : Association for Supervision and Curriculum Development, 2007 . x, 158, [1] p. : 26 cm.. 9781416605690 (pbk. : alk. paper)

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By Frey, Nancy,. Alexandria, Va. : ASCD, 2009 . vii, 127 p. : 23 cm.. 9781416608837 (pbk.) | 1416608834

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