00298nam a2200121 a 450000500170000002000150001708200150003210000060004711000270005324500410008026000280012130000270014920251203110047.0  a0415196329  a149.2bARC  d_  aArcher, Margaret et al  aCritical realism: essential readings  aLondonbRoutledgec1998  axxiv,756p.c23 cm P.B.