The growth of world industry 1973 edition  : Vol.1 General industrial statistics 

. - New York  : United Nations, Department of economic and social affairs , statistical office of the United Nations, 1975
. - XI-645 p.  ; 29 cm. 
<br/><br/><label>Source: </label>40008 
<br/><br/><label>Universal Decimal Class. No.: </label>338.924.