TY  - BOOK
AU  - Porter,Michael E
TI  - Competitive advantage: Creating and sustaining superior performance 
SN  - 9780743260879 (pbk.)
U1  - 658 
PY  - 1985///. (1998).[2004]
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial management
N1  - Includes bibliographical references( p. [537]-540) and index
ER  -