Yoffie, D. B. C. (2015). Strategy Rules. HarperCollins.
Chicago Style aipamenaYoffie, David B.; Cusumano. Strategy Rules. New York: HarperCollins, 2015.
MLA aipamenaYoffie, David B.; Cusumano. Strategy Rules. HarperCollins, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.