Theil, Henri. <br/><br/>
Linear aggregation of economic relations / 
Henri Theil 
 - Amsterdam,  North-Holland Pub. Co.,  c1955[printing1974] 
 - xi, 205 p.:  diagrs.;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics, Mathematical
<br/><br/><label>Dewey Class. No.: </label> / THL