000			00411cam a22001457a 4500
008			180718b1955 xxu||||| |||| 00| 0 eng d
082			_aI551 C365
100			_aChapin, F. Stuart
245			_aExperimental designs in sociological research _cby F. Stuart Chapin
250			_aRev. ed.
260			_aNew York _bHarper _c1955
300			_a297p.
650			_aExperimental design
650			_aSociology --Research
999			_c362104 _d362104