Gaya APA

Paparella, M, M, [. (1991). Otolaryngology : Head and neck (3rd. Ed). United States of America: W.B Saunders Company.

Gaya MLA

Paparella, Michael, M, [et.al]. "Otolaryngology : Head and neck". 3rd. Ed United States of America: W.B Saunders Company, 1991. Text.