Boltyansky, V. G. <br/><br/>
Differentiation Explained 

 - Moscow  Mir Publishers  1977 
 - 62 
<br/><br/><label>Publisher. No.: </label> Navakarnataka Publications 
<br/><br/><label>Subjects--Personal Names: </label> Mathematics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics