SAS user's guide :  basics, version 5 edition / 
SAS Institute. 
 - Cary, North Carolina :  SAS Institute,  1985. 
 - 1290 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>091738265X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automatic Data Processing.<br/>Information retrieval systems.<br/>Computers.