APA استشهاد

Bettelheim, F. A. (2013). Introduction to organic and biochemistry (Eighth edition.). Brooks/Cole.

استشهاد بنمط شيكاغو

Bettelheim, Frederick A. Introduction to Organic and Biochemistry. Eighth edition. Australia: Brooks/Cole, 2013.

MLA استشهاد

Bettelheim, Frederick A. Introduction to Organic and Biochemistry. Eighth edition. Brooks/Cole, 2013.