Dyfyniad APA

Read, H. (1953). Geology: An introduction to earth-history. Oxford University Pr..

Dyfyniad Arddull Chicago

Read, H.H. Geology: An Introduction to Earth-history. London: Oxford University Pr., 1953.

Dyfyniad MLA

Read, H.H. Geology: An Introduction to Earth-history. Oxford University Pr., 1953.

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