TY  - BOOK
AU  - Mosher,Ralph L.
AU  - Purpel,David E.
TI  - Supervision: the reluctant profession
SN  - 039512509X
U1  - 371.2 MOS 
PY  - 1971///, c1972]
CY  - Boston
PB  - Houghton Mifflin
KW  - School supervision
N1  - Bibliography: p. 207-215
ER  -