APA استشهاد

Underwood, E. J. (1962). Trace elements in human and animal nutrition/2nd ed (2nd ed.). Academic press.

استشهاد بنمط شيكاغو

Underwood, E. J. Trace Elements in Human and Animal Nutrition/2nd Ed. 2nd ed. New york: Academic press, 1962.

MLA استشهاد

Underwood, E. J. Trace Elements in Human and Animal Nutrition/2nd Ed. 2nd ed. Academic press, 1962.