000			00345nam a2200157Ia 4500
005			20250425161608.0
008			250425s9999 xx 000 0 und d
041			_aeng
082			_a625.734
245		0	_aSMALL DRAINAGE STRUCTURES
250			_aS.E.
260			_aS.L.
260			_aSin Pais _bNAAS _c1978
942			_c01
010			_a23886
999			_c212241 _d212241