000 00272nam a2200085Ia 4500
008 150310s9999 xx 000 0 und d
245 _a"IRC: 7-1971, RECOMMENDED PRACTICE FOR NUMBERING BRIDGES & CULVERTS (FIRST REVISION)"
250 _a2
260 _c1971
_bINDIAN ROADS CONGRESS
999 _c5647
_d5647