Daal, J. Van <br/><br/>
Aggregation in economic research from individual to macro relations  / 

 - Dordrecht:  Reidel Publications,  1984 
 - xiv, 321 p. Index 
 - Theory and Decision Library    an international series in the Philosophy and methodology of the Social and Behavioral Sciences ; Vol. 41 .
<br/><br/><label>Dewey Class. No.: </label>339.31  / D111.AE