APA
WHO Expert Committee on Cancer Pain Relief and Active Supportive Care, World Health Organization, . (1990). Cancer pain relief and palliative care : report of a WHO Expert committee [meeting held in Geneva from 3 to 10 July 1989]. Geneva: World Health Organization.
Chicago
WHO Expert Committee on Cancer Pain Relief and Active Supportive Care, World Health Organization, . 1990. Cancer pain relief and palliative care : report of a WHO Expert committee [meeting held in Geneva from 3 to 10 July 1989]. Geneva: World Health Organization.
Harvard
WHO Expert Committee on Cancer Pain Relief and Active Supportive Care, World Health Organization, . (1990). Cancer pain relief and palliative care : report of a WHO Expert committee [meeting held in Geneva from 3 to 10 July 1989]. Geneva: World Health Organization.
MLA
WHO Expert Committee on Cancer Pain Relief and Active Supportive Care, World Health Organization, . Cancer pain relief and palliative care : report of a WHO Expert committee [meeting held in Geneva from 3 to 10 July 1989]. Geneva: World Health Organization. 1990.