MLA

Kumar, et al. Animal Biometrics. Springer Singapore, 2017.

APA

Kumar, K., Singh, A. Kumar, Singh, R., & Singh, S. Kumar. (2017). Animal Biometrics. Springer Singapore.

Chicago

Kumar, Amit Kumar Singh, Rishav Singh, and Sanjay Kumar Singh. Animal Biometrics. : Springer Singapore, 2017.