DOROFEEV (G) & others <br/><br/>
Elementary mathematics. 

 - Moscow  Mir Publishers  1980 
 - 488 p 
<br/><br/> HB 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510 DORE