APA citiranje

OMS. (1991). World health forum; Vol.12(N.4)/1991. Geneva: OMS.

Trích dẫn kiểu Chicago

OMS. World Health Forum; Vol.12(N.4)/1991. Geneva: OMS, 1991.

MLA citiranje

OMS. World Health Forum; Vol.12(N.4)/1991. Geneva: OMS, 1991.