Er duo
By: Ma Yuanqian wen ; Lü Youming tu ; Taiwan sheng zheng fu jiao yu ting er tong du wu bian ji xiao zu zhu bian
Series: Zhonghua er tong cong shu
Publisher: Taiwan sheng zheng fu jiao yu ting; Fa xing zhe Taiwan shu dian
Published: 1975
Place of publication: [Zhongxingxincun]; Taibei Shi
Language: chi
Number of pages: 40