World Health Organization. (1996). Cancer pain relief: With a guide to opioid availability (2nd ed.). WHO.
Chicago Edition CitationWorld Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. Geneva: WHO, 1996.
MLA Edition CitationWorld Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. WHO, 1996.
Warning: These citations may not always be 100% accurate.