00518nam a2200181 a 450000500170000002000150001708200170003210000060004911000200005524500770007526000330015230000190018569000200020496400210022499700120024599900170025795200620027420251203091331.0  a083890405X  a300.16,bsou  d_  aWebb, William,H  aSources of information in the social sciences: a guide to the literature  aDelhi:Arnold Heinemannc1987  ax, 777p.c22cm  aSocial sciences  bENGcdefgPUL  a49849 C  c38525d38525  00104070aPUbPUd2000-07-21l0o300.16, soup49849yBK