TY - BOOK AU - Porter، Michael E TI - On Competition T2 - The Harvard business review book Series SN - 9781422126967 U1 - 382.1042 21 PY - 2008/// CY - NewYork PB - AHarvard Business Review KW - Business KW - Comparative advantage KW - Industrial Trusts KW - International Competition N1 - Includes Index A-Z ER -