Challen D. W. <br/><br/>
Macroeconomic systems    Construction, validation a    
Challen D. W.; Hagger A. J. 
 - London  Macmillan UK           1983 
 - xiii, 235p. Bib chapterwise  cm. 
<br/><br/><label>ISBN: </label>0 333 31084 5 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Macroeconomics
<br/><br/><label>Dewey Class. No.: </label>X:72:(B), M3