Tentative report [s] submitted for discussion at the conference on December 3 [-5] 1931, no. A-F, no. 1-25.

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Item Link Original Source
Full view   no A-F University of California
Full view   no. 1 Purdue University
Full view   no. 2 Purdue University
Full view   no. 2 Purdue University
Full view   no.14-25 University of California