Demand and supply 
Ralph Turvey.  
 - London  Allen and Unwin  1971.  
 - 127 S  ill. 
<br/><br/><label>ISBN: </label>0043301983 (cased) 9780043301982 (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angebot.<br/>Nachfrage.