000			00305nam a2200121Ia 4500
005			20251007104515.0
008			251006s9999 xx 000 0 und d
100			_agrabau,amadeus
245		0	_a.principles of stratigraphy grabau,amadeus
260			_a1st.ed. | .N.Y. Dover
260			_c1960
942			_cBOK
999			_c8680 _d8680