Gaya APA

Lesperance, M., M., Flint, P., W. (2015). Cummings Pediatrics Otolartngology . Philadelpia: Elsevier.

Gaya MLA

Lesperance, M., M., Flint, P., W.. Cummings Pediatrics Otolartngology. Philadelpia: Elsevier, 2015. Text.