MLA

Sperling, Mark A. Pediatric Endocrinology. W.B. Saunders, 2014.

APA

Sperling, M. A. (2014). Pediatric Endocrinology. W.B. Saunders.

Chicago

Sperling, Mark A. Pediatric Endocrinology. : W.B. Saunders, 2014.