Showing 1 - 3 results of 3 for search 'Powers, Samuel Ralph 1887-', query time: 0.01s Refine Results
  1. 1

    New directions in science teaching a report of a cooperative project ins eventeen secondary schools with the Bureau of Educational Research in Science, Teachers College, Columbia U... by Laton, Anita Duncan Elizabeth 1895-

    Published 1949
    Book

    New directions in science teaching a report of a cooperative project ins eventeen secondary schools with the Bureau of Educational Research in Science, Teachers College, Columbia University
  2. 2

    Man and his physical universe by Jean, Frank Covert 1880-

    Published 1943
    Book

    Man and his physical universe
  3. 3

    Man and his physical universe by Jean, Frank Covert

    Published 1943
    Book

    Man and his physical universe

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