Clark, Colin,  1905- <br/><br/>
The conditions of economic progress / 
Colin Clark 
 - 3rd ed. 
 - London :  MacMillan,  1957. 
 - xv, 720 p. :  ill. ;  26 cm. 
<br/><br/>Bibliography : p. 685-691 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic conditions<br/>Income<br/>Cost<br/>Standard of living
<br/><br/><label>Dewey Class. No.: </label>330.904