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引文World Health Organization. Cancer Pain Relief: With a Guide to Opioid Availability. 2nd ed. WHO, 1996.
警告:這些引文格式不一定是100%准確.