TY  - BOOK
AU  - Stewart R W
AU  -  Marsahal Catherine
AU  -  Rossman Gretcher B
AU  -  Shamdasani P N
TI  - Designing qualitive research
U1  - Sigma:b4, M9 
PY  - 1990///
CY  - London
PB  - Sage Publications        
ER  -