Vavilov, V.V <br/><br/>
Equations & inequalities  study aid 
V.V. Vavilov et al 
 - Moscow  MIR Publishers  1990 
 - 453 
<br/><br/><label>ISBN: </label>5030014012 
<br/><br/><label>Dewey Class. No.: </label>511.35  / VAV