Cita APA

Oster, S. M., & Sharon M. Oster. (1999). Modern competitive analysis. New York: Oxford University Press.

Chicago Style Citation

Oster, Sharon M., i Sharon M. Oster. Modern Competitive Analysis. New York: Oxford University Press, 1999.

Cita MLA

Oster, Sharon M., i Sharon M. Oster. Modern Competitive Analysis. New York: Oxford University Press, 1999.