000			00267nam a22001217a 4500
008			170809b xxu||||| |||| 00| 0 eng d
041			_aeng
080			_a004
100			_a35
101			_aSHK
245			_aHOW TO UNDESTAND AND USE GRIDS _cSWANN,A
942			_2udc _cBK
999			_c22977 _d22977