TY  - BOOK
AU  - Certo,Samuel C.
TI  - Supervision: concepts and skill building 
SN  - 0072987529
PY  - 2006///
CY  - Boston
PB  - McGraw-Hill/Irwin
KW  - Supervision of employees
N1  - Includes bibliographical references (p. 535-551) and index
ER  -