000 00444nam a2200181Ia 4500
001 20160
008 140408s9999 xx 000 0 und d
020 _a0-13-241407-4
040 _cPK-LaUMT
082 _a 001.4
_bLEE-P
100 _aPaul D. Leedy
245 _aPractical research:
_bPlanning and design
_cPaul D. Leedy
250 _a6th
260 _aBoston,USA:
_bPrentice Hall,
_c1997
300 _a304 p.
546 _aEN
942 _cBK
999 _c20512
_d20512