TY  - BOOK
AU  - Langer,Judith
TI  - The mirrored window: focus groups from a moderator´s point of view 
SN  - 0967143942
U1  - 658.8 
PY  - 2001///
CY  - Ithaca, N.Y.
PB  - PMP
KW  - Mercadeo
KW  - Investigaciones
ER  -