00248nam a2200085Ia 4500008004100000041000800041100003400049245004800083260003100131230508s1977    xx            000 0 und d  aeng  aWIEST JEROME D. /LEVY FERDINA  aA MANAGENENT GUIDE TO PERT / CPM/ WITH GERT  bPHI LEARNING PVT. LTc1977