APA引文

(1989). OECD in figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.).

Trích dẫn kiểu Chicago

OECD in Figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.), 1989.

MLA引文

OECD in Figures 1989. [Paris]: The OECD Observer (Organisation for Economic Co-operation and Development. OECD observer.), 1989.