Song Do Soo & Yeo Woon Bang. (2011). Shu xue zhong de shuangbao tai-xiang si tu xing = Mathematics twins-similar figures. Beijing Double Spiral Culture & Exchange Company Ltd.
Chicago Style (17th ed.) CitationSong Do Soo and Yeo Woon Bang. Shu Xue Zhong De Shuangbao Tai-xiang Si Tu Xing = Mathematics Twins-similar Figures. Beijing: Beijing Double Spiral Culture & Exchange Company Ltd, 2011.
MLA (9th ed.) CitationSong Do Soo and Yeo Woon Bang. Shu Xue Zhong De Shuangbao Tai-xiang Si Tu Xing = Mathematics Twins-similar Figures. Beijing Double Spiral Culture & Exchange Company Ltd, 2011.
Warning: These citations may not always be 100% accurate.