Roger E., J. (2014). Focused leadership: Instruction, learning, and school improvement. Rowman & Littlefield Publishers.
Chicago-tyylinen lähdeviittausRoger E., Jones. Focused Leadership: Instruction, Learning, and School Improvement. Rowman & Littlefield Publishers, 2014.
MLA-viiteRoger E., Jones. Focused Leadership: Instruction, Learning, and School Improvement. Rowman & Littlefield Publishers, 2014.
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