World energy supplies 1966-69 / 
United Nations, Department of Economic and Social Affairs. 
 - New York:  United Nations,  1971. 
 - 104p. 
 - Statistical papers series J No.14 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy<br/>Supply and demand, Statistics
<br/><br/><label>Dewey Class. No.: </label>333.7911021  / L1