Simms,  Alfred  G. <br/><br/>
Project Network Analysis And  Critical Path /  English. 
Alfred G Simms , John R . Britten . 
 - London :  The Machinery Publishing LTD ,  1969. 
 - 98p.:  21 cm. 
<br/><br/><label>Dewey Class. No.: </label>65.012.1224  / SIM