Dyfyniad APA

World Health Organization. (1996). Cancer pain relief: With a guide to opioid availability (2nd ed.). WHO.

Dyfyniad Arddull Chicago

World Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. Geneva: WHO, 1996.

Dyfyniad MLA

World Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. WHO, 1996.

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