APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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