Project planning by network analysis  proceeding of the second international congress Amsterdam, the Netherlands, 6- 10 October 1969 
editor H. J. M. Lombaers 
 - Amsterdam  North-Holland Publishing Co.  1969 
 - 459 p. : ill. ; 23 cm. 
<br/><br/><label>ISBN: </label>0720420318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Network analysis (Planning)<br/>Project management