Dyfyniad APA

EMMONS, W. H. (1960). Geology principles and proceses - Williams H Emmoms, IRAS Allison, Clinton R. Stauffer. Mc Graw Hill.

Dyfyniad Arddull Chicago

EMMONS, Williams H. Geology Principles and Proceses - Williams H Emmoms, IRAS Allison, Clinton R. Stauffer. Mc Graw Hill, 1960.

Dyfyniad MLA

EMMONS, Williams H. Geology Principles and Proceses - Williams H Emmoms, IRAS Allison, Clinton R. Stauffer. Mc Graw Hill, 1960.

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