000 00443nam a2200157Ia 4500
008 151213s9999 xx 000 0 und d
100 _aRechard A.Krueger
245 _aFocus Groceps :A Practical Guide of Applied Research
_cRechard A.Krueger
250 _a2nd
260 _aSoga Publ
_bThausand Oaks Calif
_c1994
300 _a2810 p.
650 _aReference
650 _aSocial Service
700 _aRechard A.Krueger
999 _c1920
_d1920