Volberda, H. W., & Elfring, T. (2001). Rethinking strategy. SAGE Publications.
Lua i Stíl Chicago (17ú heag.)Volberda, Henk Wijtze, agus Tom Elfring. Rethinking Strategy. London ; Thousand Oaks, Calif.: SAGE Publications, 2001.
Lua MLA (9ú heag.)Volberda, Henk Wijtze, agus Tom Elfring. Rethinking Strategy. SAGE Publications, 2001.
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