The great lakes :   an environmental atlas and resource book. 

 - Chicago, US :   United States Environmental Protection Agency,   1988. 
 - 44 p + 1 mapa 
<br/><br/><label>ISBN: </label>0662151895 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LAGOS<br/>MEDIO AMBIENTE<br/>CONTAMINACION<br/>EUTROFIZACION
<br/><br/><label>Universal Decimal Class. No.: </label>556.56