Dyfyniad APA

Heling, D. (1990). Sediments and environmental geochemistry. Springer-Verlag.

Dyfyniad Arddull Chicago

Heling, Dietrich. Sediments and Environmental Geochemistry. New York: Springer-Verlag, 1990.

Dyfyniad MLA

Heling, Dietrich. Sediments and Environmental Geochemistry. Springer-Verlag, 1990.

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