14 resultados para Continuing formation. Science teaching. Content of astronomy

em University of Michigan


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Vols. 8-15 also called New Series, vols. 1-8; vols. 16-22, also called 3d. series, vols. 1-7

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Bibliography: p. 41.

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Title varies slightly.

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Published also as thesis (PH. D.) Columbia University, 1918.