Yong bu ting xi di fen zi yun dong
By: Yan Jinduo
Edition: Di 1 ban
Series: Zi ran ke xue xiao cong shu; Zi ran ke xue xiao cong shu (Beijing chu ban she)
Publisher: Beijing chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1981
Place of publication: Beijing
Language: chi
Number of pages: 68