Pennycuick, Roy A, <br/><br/>
People, pollution and payment 
by Roy A. Pennycuick. 
 - Leuven, Belgium  Acco  1973. 
 - xii, 177 pages;  24 cm. 
<br/><br/> At head of title: Katholieke Universiteit te Leuven. Faculteit der Economische en Toegepaste Economische Wetenschappen. Department Economie. 
<br/><br/>Thesis--Katholeike Universiteit te Leuven. 
<br/><br/>Bibliography: p. 172-175. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Economic aspects<br/>Population<br/>Population forecasting--Mathematical models<br/>Environmental policy