WHO. (1992). WHO drug information; Vol.6(N.2)/1992. Geneva: WHO.
Trích dẫn kiểu ChicagoWHO. WHO Drug Information; Vol.6(N.2)/1992. Geneva: WHO, 1992.
MLA引文WHO. WHO Drug Information; Vol.6(N.2)/1992. Geneva: WHO, 1992.
警告：这些引文格式不一定是100％准确.
APA引文