MLA

Guandalini, Stefano, and Flavia Indrio. Probiotics and Child Gastrointestinal Health. Springer International Publishing, 2019.

APA

Guandalini, S., & Indrio, F. (2019). Probiotics and Child Gastrointestinal Health. Springer International Publishing.

Chicago

Guandalini, Stefano, and Flavia Indrio. Probiotics and Child Gastrointestinal Health. : Springer International Publishing, 2019.