TY  - BOOK
ED  - International Congress on Project Planning by Betwork Analysis (2nd : 1969 : Amsterdam Netherland)
TI  - Proceedings edited by H. J. M. Lombaers
U1  - "X65291p1,N69, K9" 
PY  - 1969///
CY  - Amsterdam
PB  - North Holland Netherland     
KW  - Securities
ER  -