MLA

Manouselis, Nikos, et al. Recommender Systems for Technology Enhanced Learning. Springer New York, 2014.

APA

Manouselis, N., Drachsler, H., Santos, O. C, & Verbert, K. (2014). Recommender Systems for Technology Enhanced Learning. Springer New York.

Chicago

Manouselis, Nikos, Hendrik Drachsler, Olga C Santos, and Katrien Verbert. Recommender Systems for Technology Enhanced Learning. : Springer New York, 2014.