Lake Biwa :   conservation of aquatic environments 

 - Otsu, Japan :   Environment Division of Shiga Prefectural Government,   1985. 
 - 27 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LAGOS<br/>LAGO BIWA, JAPON<br/>MEDIO AMBIENTE
<br/><br/><label>Universal Decimal Class. No.: </label>556.55