World energy supplies 1961-1970. 

 - New York  United Nations          1972 
 - vi;373p  cm. 
 - Statistical papers series no.15 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3(c14).N70<--N61s, K0/UN