TY  - BOOK
AU  - Burgerss Robert G. Editor
TI  - Field Research :  A source book and field manual
SN  - 0043120148
U1  - Sigma:f, M2 
PY  - 1982///
CY  - London
PB  - George Allen & Unwin UK    
KW  -  SOCIAL SCIENCES
KW  - RESEARCH METHODS
ER  -