Cita APA (7th ed.)

Gray, N., Calvin, M., & Bhatia, S. (2011). Enzymes biotechnology. CBS publishers.

Cita Chicago (17th ed.)

Gray, N., M. Calvin, i S.C Bhatia. Enzymes Biotechnology. Singapore: CBS publishers, 2011.

Cita MLA (9th ed.)

Gray, N., et al. Enzymes Biotechnology. CBS publishers, 2011.