Shiyou jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.
Cita Chicago (17th ed.)Shiyou Jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.
Cita MLA (9th ed.)Shiyou Jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.
Atenció: Aquestes cites poden no estar 100% correctes.