00458nam a2200157 a 450000500170000008200160001710000240003324500210005726000440007830000240012269000210014696400160016799700180018399900170020195200820021820251203091416.0  a004.65bVAL  aVan Valkenburg, M.E  aNetwork analysis  aNew DelhibPrentice-Hall of Indiac1989  axv,571p.c24cm.bPB  aNetwork analysis  bcdefg_  a49300 LIBSC C  c41270d41270  00104070aPUbPUd2003-01-03l0o004.65 VALp49300r2026-08-10 16:25:00yBK