00414nam a2200133Ia 4500008004100000020001500041040003800056100002400094245008700118250000800205260002300213300001700236653002700253220101s9999    xx            000 0 und d  a9067642746  cJayakar Knowledge Resource Centre  aStratigraphy V: 011 0aStratigraphy and V: 011: proceedings of the 30th international Geological congress  a1st  bVSPaUtrechtc1997  avii, 237p p.  aGeology, stratigraphic