An introduction to the scientific study of classroom supervision
By:  by A.S. Barr
Series: Appelton series in supervision and teaching, ed. by A.S. Barr and W. H. Burton.
Publisher: D. Appleton and company
Published: 1931
Place of publication: New York; London
Language: eng
Number of pages: 399
Subjects: School management and organization.; School superintendents and principals.; Teaching.
Other titles: Classroom supervision.
Notes: "Selected references"at end of each chapter.