Income maintenance :  interdisciplinary approaches to research / 
edited by Larry L. Orr . . . [et al. ] 
 - Chicago :  Markham,  c1971 
 - xiii, 339 p. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 12.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor costs<br/>Income
<br/><br/><label>Dewey Class. No.: </label>331.230973