TY  - BOOK
AU  - Certo,Samuel C.
TI  - Supervision: : concepts and skill builiding
SN  - 0-07 -248839-5
AV  - HF5549.12.C42 
PY  - 2003///
CY  - New York
PB  - : McGraw-Hill
KW  - Supervision of employees
N1  - Includes bibliographical references and index
ER  -