Hey, John Denis. <br/><br/>
Statistics in economics / 
John D. Hey. 
 - [London] :  Martin Robertson,  1974. 
 - x, 422 p. :  ill. 
<br/><br/><label>ISBN: </label>0855200561 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.