Harris, Chester W. <br/><br/>
Problems in measuring change 

 - Wisconsin  : The University of Wisconsin Press,  1963. 
 - x,259p.  : ill. ;  ; 24cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Measuring change<br/>Mathematical model
<br/><br/><label>LC Class. No.: </label>BF39.H27