TY  - BOOK
AU  - Porter, Michael E., 1947-
TI  - Competitive strategy
SN  - 0029253608
AV  - HD 41 Por 
PY  - 1980///
CY  - New York
PB  - Free Press
KW  - COMPETITION--LAW AND LEGISLATION--ZIMBABWE
KW  - INDUSTRIAL MANAGEMENT
KW  - MANAGEMENT
N1  - Includes index. -Bibliography: p. 383-387
ER  -