Gaya APA

Scher, R., Myssiorek, D. (2018). Management of Zenker and Hypopharyngeal Diverticula (1st ed. 2018). New york: Springer International Publishing.

Gaya MLA

Scher, Richard., Myssiorek, David. "Management of Zenker and Hypopharyngeal Diverticula". 1st ed. 2018 New york: Springer International Publishing, 2018. Text.