Lockyer, K. G. <br/><br/>
An introduction to critical path analysis 

 - 3rd ed. 
 - London  ; Sir Isaac Pitman And Sons  , 1969 
 - xi,219p. 
<br/><br/><label>ISBN: </label> 25 
<br/><br/><label>Dewey Class. No.: </label>658.602  / LOC