00414nam a2200145 a 450000500170000008200160001710000230003310000230005610000200007924500620009926000350016130000230019663000190021963000300023820251202164221.0  a300.18bWIL  aWilliamson, John B  aKarp, David Allen,  aDalphin, John R  aResearch craftban introduction to social science methods  aBostonbLittle Brown Co.c1977  a468 p.b22 cm.cHB  aSocial Science  aSocial sciences--Research