Symposium on radiography. 

 - Philadelphia :  A.S.T.M.,  1943. 
 - 256 p. :  il. ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiografía
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>778.33