Dyfyniad APA

University of Chicago Press. (1997). Jornal of Geology,vol.105(1-6).

Dyfyniad Arddull Chicago

University of Chicago Press. Jornal of Geology,vol.105(1-6). University of Chicago Press, 1997.

Dyfyniad MLA

University of Chicago Press. Jornal of Geology,vol.105(1-6). 1997.

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