TY  - BOOK
AU  - Goldman,Alfred E.
AU  - McDonald,Susan Schwartz
TI  - The group depth interview: principles and practice 
SN  - 013365396X
PY  - 1987///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Interviewing in marketing research
N1  - Includes index
ER  -