Dyfyniad APA

Enos, J. L. (1962). Petroleum progress and profits; a history of process innovation. MIT Press.

Dyfyniad Arddull Chicago

Enos, John Lawrence. Petroleum Progress and Profits; a History of Process Innovation. Cambridge, Mass: MIT Press, 1962.

Dyfyniad MLA

Enos, John Lawrence. Petroleum Progress and Profits; a History of Process Innovation. MIT Press, 1962.

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