MLA

Hansen, Alexander P, et al. Rhizobium Biology and Biotechnology. Springer International Publishing, 2017.

APA

Hansen, A. P, Agrawal, P. Kumar, Choudhary, D. K, & Varma, A. (2017). Rhizobium Biology and Biotechnology. Springer International Publishing.

Chicago

Hansen, Alexander P., Pawan Kumar Agrawal, Devendra K Choudhary, and Ajit Varma. Rhizobium Biology and Biotechnology. : Springer International Publishing, 2017.