Cita APA

Ryan, J., & Richards, J. (1996). Business studies today (4th ed.). Cambridge, United Kingdom: Cambridge University Press.

Citación estilo Chicago

Ryan, John, and John Richards. Business Studies Today. 4th ed. Cambridge, United Kingdom: Cambridge University Press, 1996.

Cita MLA

Ryan, John, and John Richards. Business Studies Today. 4th ed. Cambridge, United Kingdom: Cambridge University Press, 1996.