Dyfyniad APA

University of Chicago Press. (2003). Journal of Geology, Vol.111(1-6).

Dyfyniad Arddull Chicago

University of Chicago Press. Journal of Geology, Vol.111(1-6). University of Chicago Press, 2003.

Dyfyniad MLA

University of Chicago Press. Journal of Geology, Vol.111(1-6). 2003.

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