00317nam a2200109Ia 4500008004100000041000800041082001600049100002300065245004500088260004000133300003400173240624s9999    xx            000 0 und d  aeng  a650.121 HEL  aHELZBERG BARNETT C  aWHAT I LEARNED BEFORE I SOLD TO WARREN B  c2003aNew YorkbJohn Wiley and Sons  axxviii, : 242 : p. : cm. ; 23