燕化研究院志, 1971-1991
By: Zhongguo shi hua Beijing Yan hua gong si yan jiu yuan
Publisher: Zhongguo shi hua Beijing Yanshan Shi you hua gong gong si yan jiu yuan
Published: 2002
Place of publication: Beijing
Language: chi
Number of pages: 726
Subjects: History; Petroleum industry and trade; Beijing Yanshan shi you hua gong gong si. Yan jiu yuan
Other titles: Yan hua yan jiu yuan zhi, 1971-1991