Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.