TY  - BOOK
AU  - Porter,Michael E.
TI  - Competitive strategy : :  techniques for analyzing industries and competitors / 
SN  - 0029253608
U1  - 658   22
PY  - 1980///
CY  - New York : 
PB  -  Free Press, 
KW  - Competition
KW  - Industrial management
N1  -  Includes index; Bibliography: p. 383-387
ER  -