APA استشهاد

(2000). WHO drug information Vol.14.No.4,2000. World Health Organisation.

استشهاد بنمط شيكاغو

WHO Drug Information Vol.14.No.4,2000. Geneva: World Health Organisation, 2000.

MLA استشهاد

WHO Drug Information Vol.14.No.4,2000. World Health Organisation, 2000.