Zheng jiu di qiu
By: [zhu bian Du Jian].
Contributors: Du, Jian.
Edition: Di 1 ban
Series: Ge xue yu ke huan cong kan -- 4
Publisher: San lian shu dian (Xianggang) you xian gong si
Published: 1990
Place of publication: Xianggang
Language: chi
Number of pages: 192
Subjects: Environmental protection.; Science -- Popular works.
Genres: Popular works.