Shiyou jixie | Editorial Office of China Petroleum Machinery
| Fformat: | Electronig Cylchgrawn |
|---|---|
| Iaith: | English |
| Cyhoeddwyd: |
Cambridge University Press
|
| Mynediad Ar-lein: | Full text available on Research4Life (HINARI,AGORA,OARE,ARDI & GOALI) |