Jacob Perkins <br/><br/>
Python Text Processing with NLTK 2.0 Cookbook: LITE. 

 - 92. 
<br/><br/>Electronic book text. 
<br/><br/><br/>Data in extended ASCII character set. <br/>Mode of access: Internet. 
<br/><br/><label>ISBN: </label>9781849516396 
<br/><br/><label>Standard No.: </label>9781849516396  isbn