Lass, Roger. <br/><br/>
English phonology and phonological theory :  synchronic and diachronic studies / 
by Roger Lass. 
 - Cambridge ;  New York, N.Y :  Cambridge University Press,  1976.   
 - xii, 241 p. :  diagrs. ;  24 cm. 
 - Cambridge Studies in Linguistics ;  17. .
<br/><br/>Includes bibliographical references : (p. 221-231) and index. 
<br/><br/>Vowel contrasts and their deployment in English : "Length" and "System"--Expanding the data-base : the yield of comparative method. 
<br/><br/><label>ISBN: </label>0521210399 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Phonology.<br/>English language--Phonology, Historical.<br/>English language--Dialects.