TY  - BOOK
AU  - Layder Derek
TI  - New strategies in social research : An introduction and guide
SN  - 0745608809
U1  - Sigma:f, N3 
PY  - 1993///
CY  - Cambridge
PB  - Polity Press UK      
KW  -  SOCIAL SCIENCES
KW  - RESEARCH METHODS
ER  -