Zi ran zi yuan he zi yuan bao hu
By: Jin Yongchun, Cheng Liansheng bian zhu
Contributors: Cheng, Liansheng
Edition: Beijing di 1 ban
Series: Gao zhong di li fu dao cong shu
Publisher: Di zhi chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1987
Place of publication: Beijing
Language: chi
Number of pages: 273
Subjects: Natural resources