000			00342nam a2200133Ia 4500
082			_a300.72 _bBLO
245			_aBlock I Variety in social science research
260			_aMilton Keynes: _bThe Open University, _c1979.
300			_b139p.
500			_aPB
546			_aEng
650			_aSocial science-Research-Methodology _9103764
942			_cBK
999			_c72515 _d72515