Sampson, Roy J. <br/><br/>
Economics :  concepts, applications, analysis / 
by Roy J. Sampson, Thomas W. Calmus 
 - Boston :  Houghton Mifflin,  1974 
 - xiii,429p. :  ill. (some col), facsims. ;  24 cm. 
<br/><br/>Bibliography : p.399-411 
<br/><br/><label>ISBN: </label>0395178126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics