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008			120812s9999 xx 000 0 und d
020			_a0-07-046303-4
041			_aEnglish
100			_aBoard
245			_aNettleton Gravity And Magnetics In Oil Prospecting
260			_aUSA
260			_bMCGRAW
260			_c1989
300			_a452
942			_e1
999			_c122711 _d122711