APA استشهاد

Smith, E. L. (1983). Principles of biochemistry, general aspects (7th ed.). McGraw-Hill.

استشهاد بنمط شيكاغو

Smith, Emil L. Principles of Biochemistry, General Aspects. 7th ed. New York: McGraw-Hill, 1983.

MLA استشهاد

Smith, Emil L. Principles of Biochemistry, General Aspects. 7th ed. McGraw-Hill, 1983.