000
00253nam a2200109Ia 4500
008
200802s9999||||xx |||||||||||||| ||und||
035
_a
39460
100
_a
Swanborn,P
245
0
_a
Case Study Research : What,Why and How?
260
_b
Sage
942
_c
BK
999
_c
39461
_d
39461