000			00327nam a2200145Ia 4500
100			_aRobert K Yin
020			_a0-8039-5662-2
250			_a2nd ed
654			_aSociology
942			_cBK
245			_aCase study research : design and methods
260			_aSage, London _cc1994
082			_a307.2 Yin
300			_axvii,170p
999			_c35497 _d35497