Gaya APA

Unger, J, D., Shaffer, K, A. (1980). Advanced Exercises in Diagnostic Radiology: Ear, Nose, and Throat Radiology . Philadelphia: W.B. Saunders Company.

Gaya MLA

Unger, June, D.., Shaffer, Katherine, A.. "Advanced Exercises in Diagnostic Radiology: Ear, Nose, and Throat Radiology". Philadelphia: W.B. Saunders Company, 1980. Text.