TY  - GEN
AU  - Riley, Matilda White
TI  - Sociological research Vol.1 : A case approach
U1  - 301.072 RIL 
CY  - New York, Harcourt, Brace & world,INC.
KW  - Sociology - research/ Sanpling methods/ clasification of concepts/ dynamic studies - sociological research
ER  -