TY  - BOOK
A2  - David W.Stewart, Prem N.Shamdasani, Dennis W.Rook.
A3  - Shamdasani, Prem N.
A3  - Rook, Dennis W.
AU  - Stewart, David W.
ET  - 2nd ed.
NV  - XII, 188 s. :
PY  - 2007
SN  - 9780761925828
SN  - 9780761925835 (pbk.: alk.paper)
TI  - Focus groups : theory and practice /
VL  - vol. 20
ER  -