Preston, Dennis R. <br/><br/>
Varieties of American English :  teacher's handbook / 
Dennis R.Preston, Roger W.Shuy. 
 - Revised ed. 
 - Washington, D.C :  Office of English Language Programs,  1988. 
 - iii, 35 p. ;  28 cm. 
<br/><br/> This handbook is intended to supplement the three-part videocassette series varieties of American English which consists of (1) Regional Dialects, (2) Social and Specialized Groups, and (3) Stylistic Differences. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--United States