500.420 <br/> M 40 
<br/> Coxford F., Fey T., Hirsch. <br/>
          Contemporary mathematics in contexs 
  
 - 0 
.- London, 1998
.- 555p., 
-ISBN  .: 3200 
 <br/>  -  0 
<br/><br/><label>Source: </label> Худалдаж авсан 
<br/><br/><label>Тавиурын заалт: </label>500.420  / M 40