Gaya APA

Gutmann, J, L., Lovdahl, P, E. (2011). Problem Solving in Endodontics : Prevention, Identification and Management (5). : Elsevier Saunders.

Gaya MLA

Gutmann, James, L.., Lovdahl, Paul, E.. "Problem Solving in Endodontics : Prevention, Identification and Management". 5 : Elsevier Saunders, 2011. Text.