Dyfyniad APA

World Health Organization. (2012). Persisting pain in children: Important information for physicians and nurses. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Persisting Pain in Children: Important Information for Physicians and Nurses. Geneva, Switzerland: World Health Organization, 2012.

Dyfyniad MLA

World Health Organization. Persisting Pain in Children: Important Information for Physicians and Nurses. World Health Organization, 2012.

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