Sampson, Roy J. <br/><br/>
Economics :  concepts applications analysis / 
Roy J. Sampson, Thomas W. Calmus 
 - Boston :  Houghton Mifflin,  1974 
 - 429p. :  ill. ;  24cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0395179126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics