APA citiranje

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 citiranje

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

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