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List of Publications of the United States Bureau of Education Available for Free Distribution
Harlan Updegraff
Harry Edwin King
International Commission on the Teaching of Mathematics
James Hixon Van Sickle
Louis N. Wilson
United States. Bureau of Education
其他書名
October, 1911
出版
U.S. Government Printing Office
, 1911
URL
http://books.google.com.hk/books?id=qZF8zQEACAAJ&hl=&source=gbs_api