Statistical year-book of the world power conference No.4 
/ Data on resources and annual statistics for 1936-1946 
 - London:   The Central Office, World Power Conference,   1948 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Year-book
<br/><br/><label>Subjects--Index Terms: </label>Population 
<br/><br/><label>Universal Decimal Class. No.: </label>D 31:662:62  / H8