Simon, George. Principles of chest x-ray diagnosis / George Simon. - London : Butterworths, 1956. - x, 183 p. : ill. ; 29 cm. Includes reference and index. 337 337 Subjects--Topical Terms: Chest--Diagnosis.--DiseasesChest--Radiography.X-rays. Dewey Class. No.: 616.07 / S53p