TY  - BOOK
AU  - Betts, Peter Wilfred
TI  - Supervisory studies: a managerial perspective. (5th ed.)
SN  - 0273034405
AV  - HF 5549.12 Bet 
PY  - 1989///
CY  - London
PB  - Pitman
KW  - MANAGEMENT
KW  - PERSONNEL MANAGEMENT
ER  -