Gaya APA

Volberda, H, W., Elfring, T. (2001). Rethinking Strategy . SAGE Publications Ltd 6 Bonhil: SAGE Publications.

Gaya MLA

Volberda, Henk, W.., Elfring, Tom. "Rethinking Strategy". SAGE Publications Ltd 6 Bonhil: SAGE Publications, 2001. Text.