A guide to methods of teaching in the secondary school,
by Earl R. Gabler ... and F. C. Borgeson ...
Gabler, E. Raymond., Borgeson, F. Carl. (1947). A guide to methods of teaching in the secondary school. New York: Inor publishing company.
Gabler, Earl Raymond, 1893-, and Frithiof Carl Borgeson. A Guide to Methods of Teaching In the Secondary School. New York: Inor publishing company, 1947.
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