WHO. (1994). WHO drug information; Vol.8(N.2)/1994. Geneva: WHO.
Trích dẫn kiểu ChicagoWHO. WHO Drug Information; Vol.8(N.2)/1994. Geneva: WHO, 1994.
MLA引文WHO. WHO Drug Information; Vol.8(N.2)/1994. Geneva: WHO, 1994.
警告：這些引文格式不一定是100％准確.
APA引文