Green, H. A. John <br/><br/>
Aggregation in economic analysis :  an introductory survey / 
by H. A. John Green 
 - Princeton, N.J. :  Princeton University Press,  1964 
 - ix, 129 p. :  ill. ;  26 cm. 
<br/><br/>Bibliography: p. 121-126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Econometrics<br/>Set theory