Ashworth, Caroline. <br/><br/>
An introduction to SSADM version 4 / 
Caroline Ashworth and Laurence Slater. 
 - London :  McGraw-Hill,  1993. 
 - 225 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0077077253 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing--Structured techniques.<br/>System analysis.<br/>System design.