OMS. (1991). Bulletin of WHO: Vol.69(6)/1991. Geneva: OMS.
Trích dẫn kiểu ChicagoOMS. Bulletin of WHO: Vol.69(6)/1991. Geneva: OMS, 1991.
Deismireacht MLAOMS. Bulletin of WHO: Vol.69(6)/1991. Geneva: OMS, 1991.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.