000			00340nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.78E+12
082			_a1
082			_b64 G51
100			_a"Gibbons, John P."
245		0	_aCracking The Code On The
260			_aLondon
260			_bPAN Books
260			_c1984
300			_a350
999			_c23719 _d23719