Clark, Colin  <br/><br/>
The economics of subsistence agriculture / 
Colin Clark, Margaret Haswell. 
 - London :   Macmillan,   1970. 
 - xiv, 267 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>9780333116586 
<br/><br/><label>Subjects--Topical Terms: </label><br/>     Industrial economics
<br/><br/><label>Dewey Class. No.: </label>338.1   / CLA