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Google圖書搜尋
Supervision
Arvil Sylvester Barr
William Henry Burton
Leo John Brueckner
其他書名
Principles and Practices in the Improvement of Instruction
出版
D. Appleton-Century Company, Incorporated
, 1938
URL
http://books.google.com.hk/books?id=DvpBAAAAIAAJ&hl=&source=gbs_api