Dyfyniad APA

Cook, A. H. (1973). Physics of the earth and planets. Williams clowes & sons.

Dyfyniad Arddull Chicago

Cook, A. H. Physics of the Earth and Planets. New york: Williams clowes & sons, 1973.

Dyfyniad MLA

Cook, A. H. Physics of the Earth and Planets. Williams clowes & sons, 1973.

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