Stata user's guide :   release 7. 

 - College Station, TX :  Stata Corporation (SC) ,  2001 
 - 386p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1881228533 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics <br/>Computer programmes<br/>Data management 
<br/><br/><label>Gov. Doc. Class. No.: </label>US SC Sta-2