APA استشهاد

Gray, N., Calvin, M., & Bhatia, S. C. (2010). Enzymes biotechnology. CBS.

استشهاد بنمط شيكاغو

Gray, N., M. Calvin, و S C. Bhatia. Enzymes Biotechnology. Newdelhi: CBS, 2010.

MLA استشهاد

Gray, N., et al. Enzymes Biotechnology. CBS, 2010.