Youssef, Leon A.,  1930- <br/><br/>
Systems analysis and design / 
Leon A. Youssef. 
 - Va :  Reston Pub. Co. : Reston,  1975. 
 - xii, 228 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0879097809 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Data processing.<br/>System analysis.<br/>System design.