Contributors: American Association for the Advancement of Agricultural Teaching. Meeting, Fred Clayton Butler, Frederick William Reynolds, Harry Percy Barrows, Henry Harold Goldberger, J. H. Berkowitz, National Council of Primary Education (U.S.). Meeting, United States. Bureau of Education, United States. Bureau of Education. Division of Statistics, United States. Bureau of Education. Statistical Division, United States. Office of Education, Walter Sylvanus Deffenbaugh, Walton Simon Bittner, Carl Anderson, John Charles Muerman,
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Publisher: U.S. Government Printing Office
Published: 1920
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