Singapore Information Service. Publishing Division. (1990). Singapore exporters. Published for The Singapore Trade Development Board, by Singapore Information Services (Publishing Division).
Chicago Style (17th ed.) CitationSingapore Information Service. Publishing Division. Singapore Exporters. Singapore: Published for The Singapore Trade Development Board, by Singapore Information Services (Publishing Division), 1990.
MLA引文Singapore Information Service. Publishing Division. Singapore Exporters. Published for The Singapore Trade Development Board, by Singapore Information Services (Publishing Division), 1990.
警告：這些引文格式不一定是100％准確.