TY  - GEN
AU  - Burton,William H.
AU  - Barr,Arvil Sylvester
TI  - Supervision: a social process 
T2  - Appleton series in supervision and teaching
AV  - SPE-B 0446 
U1  - 371.2 
PY  - 1955///
CY  - New York
PB  - Appleton-Century-Crofts
KW  - School supervision
N1  - Previous editions by A. S. Barr, William H. Burton, and Leo J. Brueckner
ER  -