TY  - BOOK
AU  - Porter, Michael E.,
TI  - Competitive advantage: Creating and sustaining superior performance 
SN  - 0-02-925090-0
AV  - HD41 P65
PY  - 1985///
CY  - New York
PB  - Free
KW  - Rendimiento
KW  - Administración industrial
ER  -