Leffingwell, Dean. <br/><br/>
Managing software requirements : a unified approach 
Dean, Leffingwell. 
 - Singapore: .  Pearson Education,   c2000 
 - xxix, 491 p. :  ill. ;   24 cm. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8178082608 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer software--Development--Management.
<br/><br/><label>Dewey Class. No.: </label>005.12