TY  - BOOK
AU  - Callis,Sidney
TI  - Supervisory management: an essential guide 
SN  - 1852524200
AV  - HF5549.12 .S5 2003
PY  - 2003///
CY  - Gloucestershire, UK.
PB  - Management Books
KW  - Supervision of employees
KW  - Leadership
N1  - Bibliography : p. 177-179. -- Includes index
ER  -