合作硏究集
By: Zhongshan wen hua jiao yu guan
Series: Zhongshan wen hua jiao yu guan min sheng zhuan kan -- di 2 zhong
Publisher: Zhonghua shu ju
Published: 1945
Place of publication: Chongqing
Language: chi
Number of pages: 104
Subjects: Cooperative societies
Other titles: He zuo yan jiu ji