MLA

Chaudhuri, Keya, and S. N Chatterjee. Cholera Toxins. Springer Berlin Heidelberg, 2009.

APA

Chaudhuri, K., & Chatterjee, S. N. (2009). Cholera Toxins. Springer Berlin Heidelberg.

Chicago

Chaudhuri, Keya, and S. N Chatterjee. Cholera Toxins. : Springer Berlin Heidelberg, 2009.