Dyfyniad APA

Shiyou jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.

Dyfyniad Arddull Chicago

Shiyou Jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.

Dyfyniad MLA

Shiyou Jixie | Editorial Office of China Petroleum Machinery. Cambridge University Press.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.