Gaya APA

Bettelheim, F, A. et al (2013). Inroduction to general, Organic, and Biochemistry (Cet. 1). Amerika: Brooks/Cole.

Gaya MLA

Bettelheim, Frederick, A.. et al. "Inroduction to general, Organic, and Biochemistry". Cet. 1 Amerika: Brooks/Cole, 2013. Text.