Pollock, J. E., & Ford, S. M. (2009). Improving student learning one principal at a time. Association for Supervision and Curriculum Development.
Citace podle Chicago (17th ed.)Pollock, Jane E., a Sharon M. Ford. Improving Student Learning One Principal at a Time. Alexandria, VA: Association for Supervision and Curriculum Development, 2009.
Citace podle MLA (9th ed.)Pollock, Jane E., a Sharon M. Ford. Improving Student Learning One Principal at a Time. Association for Supervision and Curriculum Development, 2009.
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