(1989). OECD in figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.).
Trích dẫn kiểu ChicagoOECD in Figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.), 1989.
Deismireacht MLAOECD in Figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.), 1989.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.