Sergeyev, Mark. <br/><br/>
The wonders and problems of lake Baikal /  
Mark Sergeyev 
 - Moscow:  Novosti Prees,   1989. 
 - 78p. ;  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LAKE
<br/><br/><label>Dewey Class. No.: </label>577.63  / SER/W