000 00319nam a2200133Ia 4500
100 _aGerring, John
020 _a978-0521-676564
942 _cBK
654 _a
245 _aCase study research
_bPrinciples and practices
260 _aNew York
_bCambridge University Press
_c2007
082 _a001.42
300 _a265
999 _c357266
_d357266
041 _aeng