TY  - BOOK
AU  - Puerto, Samuel C. 
TI  - Supervision : concepts and skill- building
SN  - 978-0-07-128673-2
U1  - Cir. 658.4 C33 
PY  - 2008///
CY  - Boston
PB  - McGraw-Hill Irwin
KW  - Supervision
KW  - Supervisors
KW  - Personnel management
ER  -