MLA

Ryan, et al. Handbook of Grammatical Evolution. Springer International Publishing, 2018.

APA

Ryan, R., Collins, J. J, O'Neill, M., & Ryan, C. (2018). Handbook of Grammatical Evolution. Springer International Publishing.

Chicago

Ryan, J. J Collins, Michael O'Neill, and Conor Ryan. Handbook of Grammatical Evolution. : Springer International Publishing, 2018.