Dyfyniad APA

Sittig, M. (1978). Petroleum refining industry: Energy saving and enviropnmental control. Noyes Data Corporation.

Dyfyniad Arddull Chicago

Sittig, Marshall. Petroleum Refining Industry: Energy Saving and Enviropnmental Control. New Jersey: Noyes Data Corporation, 1978.

Dyfyniad MLA

Sittig, Marshall. Petroleum Refining Industry: Energy Saving and Enviropnmental Control. Noyes Data Corporation, 1978.

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