Gaya APA

E.Walton, R., Torabinejad, M. (2009). PRINCIPLES AND PRACTICE ENDODONTICS (3th .edition). Philadelphia: WB SAUNDERS COMPANY.

Gaya MLA

E.Walton, Richard., Torabinejad, Mahmoud. "PRINCIPLES AND PRACTICE ENDODONTICS". 3th .edition Philadelphia: WB SAUNDERS COMPANY, 2009. Text.