TY  - GEN
AU  - Betts , P.W.
TI  - Supervisory studies: a managerial perspective
SN  - 0273034405
U1  - 658.302 
PY  - 1989///
CY  - London
PB  - Educational Low-Priced Books Scheme Pitman Publishing
KW  - SUPERVISION
KW  - MANAGEMENT
ER  -