Research methods in language variation and change / 
edited by Manfred Krug, Julia Schluter. 
 - xxvi, 511 pages :  illustrations ;  26 cm. 
<br/><br/>Includes bibliographical references (p. 456-500) and index. 
<br/><br/><label>ISBN: </label>9781107004900 (hardback)  RM353.71 9780521181860 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Variation.<br/>Language and languages--Research.<br/>Linguistic change.<br/>Linguistics--Methodololgy.