Helwig, Jane T. <br/><br/>
SAS introductory guide / 
by Jane T. Helwig. 
 - Raleigh, North Carolina :  SAS Institute Inc.,  1978. 
 - 83 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>0917382072 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SAS (Computer system).