Maindonald, John <br/><br/>
Data analysis and grphcs using R  : ana example-based approach 
/ John Maindonald, John Braun 
. - Cambridge  : University press, 007
. - 502 p.  ; 26 cm. 
<br/><br/>Index 
<br/><br/><label>Source: </label> PARES 
<br/><br/><label>Universal Decimal Class. No.: </label>311.2