TY  - BOOK
AU  - Certo,Samuel C.
TI  - Supervision: concepts and skill-building 
SN  - 9780071220453
U1  - 658.302 CER 
PY  - 2010///
CY  - New York
PB  - McGraw-Hill Irwin
KW  - Supervision of employees
N1  - Includes bibliographical references and index
ER  -