00284nam a2200109Ia 4500008004100000041000800041082001500049100002000064245004800084260003400132300000800166211209s1945    xx            000 0 und d  aeng  a631.62 ARM  aHALTIWANGER J D  aHAND BOOK OF CULVERT AND DRAINAGE PRACTICE   bARENO DRAINAGE PRODUCTSc1945  a519