Stata user's guide release 8 : statistics, graphics, data management 

 - United States of America  Stata press publication  2003 
 - xxv,423p.  23cm. 
<br/><br/><label>ISBN: </label>1881228746 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stata
<br/><br/><label>LC Class. No.: </label>QA276.4.S6486 2003