000 00316nam a2200145Ia 4500
100 _aWilliam M K Trochim
020 _a81-7722-372-0
250 _a2nd ed
654 _aSociology
942 _cBK
245 _aResearch methods
260 _aBiztantra, New Delhi
_cc2003
082 _a307.2 Tro
300 _ax, 366p
999 _c45827
_d45827