000			00335nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a81-224-0090-6
082			_a5
082			_b113 LE
100			_a"Levy,Leon"
245		0	_aDiscrete Structures Of
260			_aNew Delhi
260			_bW.E.
260			_c1980
300			_a308
999			_c44369 _d44369