An introduction to the scientific study of classroom supervision.

Bibliographic Details
Main Author:	Barr, Arvil Sylvester 1892- (Author)
Format:	Book
Language:	English
Published:	New York Appleton [1931]
Series:	Appleton series in supervision and teaching, edited by A.S. Barr and W.H. Burton.
Subjects:	School management and organization. School superintendents and principals. Teaching.