Gross, S. J. (2004). Promises kept: Sustaining school and district leadership in a turbulent era. Association for Supervision and Curriculum Development.
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Chicago Style (17th ed.) Zitazioa
Gross, Steven J. Promises Kept: Sustaining School and District Leadership in a Turbulent Era. Alexandria, Va.: Association for Supervision and Curriculum Development, 2004.
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MLA (9th ed.) Zitazioa
Gross, Steven J. Promises Kept: Sustaining School and District Leadership in a Turbulent Era. Association for Supervision and Curriculum Development, 2004.
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