Lock, Dennis. <br/><br/>
Project management / 
Dennis Lock. 
 - 4th ed. 
 - Aldershot, Hants, England :  Gower,  c1988. 
 - xiv, 367 p. ; 
<br/><br/><label>ISBN: </label>0566027240 
<br/><br/><label>LC Class. No.: </label>HD 69. P7.K4 1984