Dyfyniad APA

Bauer, A., & Velde, B. D. (2014). Geochemistry at the earth's surface: Movement of chemical elements. Springer.

Dyfyniad Arddull Chicago

Bauer, Andreas, and Bruce D. Velde. Geochemistry at the Earth's Surface: Movement of Chemical Elements. Heidelberg: Springer, 2014.

Dyfyniad MLA

Bauer, Andreas, and Bruce D. Velde. Geochemistry at the Earth's Surface: Movement of Chemical Elements. Springer, 2014.

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