00264nam a2200109Ia 4500008004100000041001200041082001100053100001800064245006000082260000600142650000600148221030s9999    xx            000 0 und d  aEnglish  a105.23  aL. S. Srinath 0aPERT & CPM  Principles & Applicationscby L. S. Srinath  c0  aB