Bosch, F. A. J. v. d., & Man, A. P. d. (1997). Perspectives on strategy: Contributions of Michael E. Porter. Kluwer Academic Publishers.
Lua i Stíl Chicago (17ú heag.)Bosch, F. A. J. van den, agus Adrianus Pieter de Man. Perspectives on Strategy: Contributions of Michael E. Porter. Boston: Kluwer Academic Publishers, 1997.
Lua MLA (9ú heag.)Bosch, F. A. J. van den, agus Adrianus Pieter de Man. Perspectives on Strategy: Contributions of Michael E. Porter. Kluwer Academic Publishers, 1997.
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