TY  - BOOK
AU  - Certo, Samuel C.
AU  - 
TI  - Supervision: : concepts and skill-building
SN  - 0-07-248839-5
U1  - 658.302 C418 2003 
CY  - New York
PB  - McGraw Hill, Higher Education.
KW  - Supervision of employees
ER  -