Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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