Changqing you tian zhi (1970-1985)
By: Changqing you tian zhi bian zuan wei yuan hui bian
Publisher: [Changqing you tian zhi bian zuan wei yuan hui]
Published: 1989
Place of publication: [Gansu]
Language: chi
Number of pages: 923
Subjects: Petroleum; Geology
Notes: Nei bu zi liao.