A System of international comparisons of gross product and purchasing power 
/ produced by the Statistical Office of the United Nations, the World Bank, and the International Comparison Unit of the University of Pennsylvania, Irving B. Kravis ... et al. 
 - Published for World Bank by Johns Hopkins University Press : Baltimore  1975 
 - xi, 294 p. : ill. ; 28 cm. 
<br/><br/> At head of title: United Nations International Comparison Project: phase one. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0801816068 
<br/><br/><label>LCCN: </label>73-019352 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Income<br/>Wealth<br/>Gross national product<br/>Purchasing power