TY  - BOOK
AU  - Betts,P.W.
TI  - Supervisory studies : : a managerial perspective 
SN  - 027303071X
PY  - 1989///
CY  - London : 
PB  - Pitman Publishing
KW  - Industrial management.
KW  - Supervision of employees.
KW  - Supervisors. `
N1  - includes bibliographical refercences and index
ER  -