000			nam a22 7a 4500
999			_c10208 _d10208
005			20180512094654.0
008			180512b xxu||||| |||| 00| 0 eng d
100			_aMetsker,Steven.John
245			_aDesign Patterns in C#
250			_a3rd
260			_aNew Delhi _bPearson _c2007
300			_a456 p.
942			_2ddc _cDB