TY  - BOOK
AU  - Certo, Samuel C
TI  - Supervision : Concepts and skill - building 
SN  - 9780078029189
U1  - 658.302 
PY  - 2013///
CY  - New York 
PB  - McGraw  Hill
KW  - Supervision of employers
KW  - Supervision
KW  - Work environment
ER  -