Kristensen, Thorkil,  1899- <br/><br/>
Development in rich and poor countries :  a general theory with statistical analyses / 
Thorkil Kristensen 
 - New York :  Praeger,  1974 
 - xvii, 164 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0275086909 
<br/><br/><label>LCCN: </label>73-021467 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development