Vygodsky M. <br/><br/>
Mathematical Nandbook Elementary Mathematics 
/ by M.Vygodsky 
 - 1st.ed 
 - Delhi  CBS Publishers & Distributors  1994 
 - 422p. 
<br/><br/><label>ISBN: </label>8123903103 
<br/><br/><label>Dewey Class. No.: </label>510  / VYG/G