APA استشهاد

Walther, J. V. (2010). Essential of geochemistry (2nd ed.). Jones and Bartlett.

استشهاد بنمط شيكاغو

Walther, John V. Essential of Geochemistry. 2nd ed. Boston: Jones and Bartlett, 2010.

MLA استشهاد

Walther, John V. Essential of Geochemistry. 2nd ed. Jones and Bartlett, 2010.