Processes of the world system  : political economy of the world-system annuals 
/ ed.by Ternce K.Hopkins and Immauel Wallerstein 
. - London  : Sage publications, 1980
. - 320 p.  ; 23 cm. 
<br/><br/><label>Source: </label> Achat 
<br/><br/><label>Universal Decimal Class. No.: </label>330.