000 00296nam a2200121Ia 4500
008 190906s9999||||xx |||||||||||||| ||und||
020 _a9780857025678
100 _aWalden Graham R
245 0 _aFocus Group Research( Vol.1)
260 _aLos Angeles
_bSage
_c2012
300 _a348p.
942 _yBK
999 _c17411
_d17411