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  1. 40102711540
    Author(s):Alpern, Dwight Kerr, 1903–
    Title:*The engineering development of photo-voltaic cells.
    Pagination:27 p.
    Place of Publication:N. Y.
    Date of Publication:1932
    Size:8°.
    Language:English
    Type of Resource:Dissertation
    Series/Volume/Page:Series 4/Volume 1/Page 271
  2. 40102711550
    Author(s):Alpert, Augusta, 1898–
    Title:*The solving of problem-situations by pre-school children; an analysis [Columbia]
    Pagination:69 p.
    Place of Publication:N. Y.
    Date of Publication:1928
    Size:8°.
    Language:English
    Type of Resource:Dissertation
    Series/Volume/Page:Series 4/Volume 1/Page 271