Address before the New York Science Teach- ers' Association, Hotel Astor, February 25, 1939.
New York Science Teachers' Association, Hotel Astor, February 25, 1939
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Edwin G. Conklin; Science in the World Crisis. The American Biology Teacher 1 May 1939; 1 (8): 171–206. doi: https://doi.org/10.2307/4436926
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