000			00279nam a2200109Ia 4500
005			20251007104420.0
008			251006s9999 xx 000 0 und d
245		0	_atechnical and g conmic aspects of the oil ....un/do
260			_a1ST ED | N . Y UN
260			_c1974
942			_cBOK
999			_c6741 _d6741