APA引文

World Health Organization. (1996). Cancer pain relief: With a guide to opioid availability. Geneva: World Health Organization.

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：这些引文格式不一定是100％准确.