TY  - MANSCPT
AU  - Schell, Erwin Haskell 
TI  - Technique of executive control
U1  - 658.0000 Sch2 
PY  - 1957///
CY  - New York : 
PB  - McGraw-Hill Book Company, 
KW  - control administrativo
KW  - administración
ER  -