Dyfyniad APA
Gupta, O. P. (2016). Elements of petroleum refinery engineering. Khanna Book Publishing Co.
Dyfyniad Arddull Chicago
Gupta, Om Prakash. Elements of Petroleum Refinery Engineering. New Delhi: Khanna Book Publishing Co, 2016.
Dyfyniad MLA
Gupta, Om Prakash. Elements of Petroleum Refinery Engineering. Khanna Book Publishing Co, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.