Helfet, Arthur J. <br/><br/>
Disorders of the lumbar spine / 
by Arthur J. Helfet and David M. Gruebel Lee 
 - Philadelphia :  J. B. Lippincott,  1978 
 - 262 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0397503814 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Backache--Therapy