Davis, Alan M. , <br/><br/>
Software requirements :  objects, functions and states / 
Alan M Davis. 
<br/><br/> Revised 
<br/><br/><label>ISBN: </label>013805763X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer software --Development.
<br/><br/><label>LC Class. No.: </label>QA76.76.D47   / .38 1993