Gaya APA

kliegman, K, J, M, D, R, M. (2015). Nelson Essentials of Pediatrics (7). philadelpia: Elsevier.

Gaya MLA

kliegman, Karen, J., Marcdante, Dan, Robert, M.. "Nelson Essentials of Pediatrics ". 7 philadelpia: Elsevier, 2015. Text.