Roy, R. (2011). Entrepreneurship (2nd.). Oxford University Press.
Chicago Style aipamenaRoy, Rajeev. Entrepreneurship. 2nd. New Delhi: Oxford University Press, 2011.
MLA aipamenaRoy, Rajeev. Entrepreneurship. 2nd. Oxford University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.