Cita APA (7a ed.)

Davis, M. P. (2009). Opioids in cancer pain (2nd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Davis, Mellar P. Opioids in Cancer Pain. 2nd ed. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (8a ed.)

Davis, Mellar P. Opioids in Cancer Pain. 2nd ed. Oxford University Press, 2009.