APA استشهاد

Friedman, P. (1992). Biochemistry: : a review with questions and explanations/4th ed (4th ed.). Little Brown.

استشهاد بنمط شيكاغو

Friedman, Paul. Biochemistry: : A Review with Questions and Explanations/4th Ed. 4th ed. Bosten: Little Brown, 1992.

MLA استشهاد

Friedman, Paul. Biochemistry: : A Review with Questions and Explanations/4th Ed. 4th ed. Little Brown, 1992.