Food production systems: Producer and consumer behaviour 

 - Milton Keynes  Open University  1981 
 - 123p. 
<br/><br/><label>ISBN: </label> UKP 4.50 
<br/><br/><label>Source: </label> UKP 4.50 
<br/><br/><label>Dewey Class. No.: </label>641 FOO