Showing 1 - 2 results of 2 for search 'Robert Yerkes', query time: 0.03s Refine Results
  1. 1
    Introduction to psychology /
    by Yerkes, Robert M.
    Published 1911
  2. 2
    Great apes, a study of anthropoid life /
    by Yerkes, Robert Mand
    Published 1953
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