000			00339nam a2200133Ia 4500
005			20260413100901.0
008			230516s9999||||xx |||||||||||||| ||und||
100			_aLiv C.L.
245		0	_aElements of discrete Mathematics
260			_bN.York Megraw hill B. Camp. _c1985
300			_a432
942			_cGB
999			_c5170 _d5170