00338nam a2200133Ia 450000500170000008000220001710000200003924500320005926000340009130000270012558300180015294200170017099900170018720260716043649.0  aREF 19.02.09 H236  aHavers, John A.  aHeavy of heavy construction  bMcGraw-HillaNew YorkUSc1971  a1 v. (various pagings)  c3/20/06kJOYD  cMmH236kREF  c51867d51867