TY  - BOOK
AU  - Certo,Samuel C.
TI  - Supervision: concepts and skill-building 
SN  - 9780071318365
AV  - HF5549.12 .C42 2013
PY  - 2013///
CY  - New York
PB  - McGraw-Hill Irwin
KW  - Supervision of employees
N1  - Includes bibliographical references and index
ER  -