Biber, Douglas <br/><br/>
Variation across Speech and Writting 
Douglas Biber 
 - NewYork   Cambridge uni  1988 
<br/><br/><label>ISBN: </label>0521425565 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language And Language Variation
<br/><br/><label>LC Class. No.: </label>P 120  .V37B5