00471nam a22001571a 450000100060000000300040000600500170001000800410002702000150006808200160008324500790009926400260017830000100020465000750021470000240028911903OSt20260204212301.0140916s1989||||   ||||||b||||||||||eng||  a9061919878  a363.7 E332e  aEngineering And Enrusonmental Impacs of Sinkholes And Karst/ Bany f. Beck.  aNetheslonds : Balkema  a384 p  a1- IMPACTO AMBIENTAL- ANALISIS 2- MEDIO AMBIENTE-CONGRESO, CONFERENCIA  aI- BECK F. BARNYÌ