Cita APA (7a ed.)

SIGCHI (Group : U.S.), sponsoring body. (2017). Proceedings of the Recommender Systems Challenge 2017. ACM.

Cita Chicago Style (17a ed.)

SIGCHI (Group : U.S.), sponsoring body. Proceedings of the Recommender Systems Challenge 2017. New York: ACM, 2017.

Cita MLA (9a ed.)

SIGCHI (Group : U.S.), sponsoring body. Proceedings of the Recommender Systems Challenge 2017. ACM, 2017.