APA استشهاد

Olphen, V. H. (1977). introduction to Clay Colloid Chemistry (2nd ed.). John Wiley.

استشهاد بنمط شيكاغو

Olphen, Van H. Introduction to Clay Colloid Chemistry. 2nd ed. New York: John Wiley, 1977.

MLA استشهاد

Olphen, Van H. Introduction to Clay Colloid Chemistry. 2nd ed. John Wiley, 1977.