Dyfyniad APA

Ringwood, A. E. (1975). Composition and petrology of the earth's mantle. McGraw-Hill.

Dyfyniad Arddull Chicago

Ringwood, A. E. Composition and Petrology of the Earth's Mantle. New York: McGraw-Hill, 1975.

Dyfyniad MLA

Ringwood, A. E. Composition and Petrology of the Earth's Mantle. McGraw-Hill, 1975.

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