Gaya APA

B.Snow, J., Wackym, P. (2009,2016). Ballenger's Otorhinolaryngology Head and Neck Surgery (17, 18). : BC. Decker Inc.

Gaya MLA

B.Snow, James., Wackym, P.Ashley. "Ballenger's Otorhinolaryngology Head and Neck Surgery". 17, 18 : BC. Decker Inc, 2009,2016. Text.