Clark, John. <br/><br/>
An Introduction to phonetics and phonology / 
John Clark, Colin Yallop and Janet Fletcher. 
 - 3rd  ed. 
 - Oxford :  Blackwell,  2007. 
 - xvi, 487  p. 
<br/><br/><label>ISBN: </label>1405130830 :  KES 3399