WHO. (1993). WHO drug information; Vol.7(N.2)/1993. Geneva: WHO.
Trích dẫn kiểu ChicagoWHO. WHO Drug Information; Vol.7(N.2)/1993. Geneva: WHO, 1993.
MLA CitationWHO. WHO Drug Information; Vol.7(N.2)/1993. Geneva: WHO, 1993.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.