University of Minnesota Masters thesis. June 1920. Major: Education. Advisor: Dr. Leonard V. Koos, Dr. R. W. Sies, Dr. M. R. Van Wagenen, Dr. Lotus D. Coffman. 1 computer file (PDF); 142 pages.
Koos, Frank H..
A Study of the Teaching Load of Two Hundred Thirty-Six Minnesota High School Teachers.
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