000			00307nam a22001211i 4500
001			4539
090			_94539 _a4539
100			_a20160923 |||y0rusy50
101			_aeng
200	1		_aSummer learning is fun
210			_as. l. _cs. n.
676			_a427
942			_cBOOK _h427 _vSUM _m/1//1 _j427 SUM /1//1