Dyfyniad APA

Swain, F. (1970). Non marine organic geochemistry. Cambridge University Press.

Dyfyniad Arddull Chicago

Swain, Frederick. Non Marine Organic Geochemistry. London: Cambridge University Press, 1970.

Dyfyniad MLA

Swain, Frederick. Non Marine Organic Geochemistry. Cambridge University Press, 1970.

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