TY  - BOOK
AU  - STEWART, David W 
AU  -  SHAMDASANI,  Prem N
TI  - Focus groups:Theory and practice                                                                                        
PY  - 1990///
CY  - Newbury Park, California                                    
PB  - Sage Publications                                           
KW  - SOCIAL SCIENCES | RESEARCH | SURVEYS
ER  -