MLA

Mamula, Petar, Jonathan E Markowitz, and Robert N Baldassano. Pediatric Inflammatory Bowel Disease. Dordrecht: Springer New York, 2013.

APA

Mamula, P., Markowitz, J. E, & Baldassano, R. N. (2013). Pediatric Inflammatory Bowel Disease. Dordrecht: Springer New York.

Chicago

Mamula, Petar, Jonathan E Markowitz, and Robert N Baldassano. Pediatric Inflammatory Bowel Disease. Dordrecht: Springer New York, 2013.