The focus group guidebook-3
Krueger,Richard
The focus group guidebook-3 - 2nd Ed.; - London SAGE, 1998 - xix,106p.; ill. 18cm
0761908196
Research
001.433 / KRU
The focus group guidebook-3 - 2nd Ed.; - London SAGE, 1998 - xix,106p.; ill. 18cm
0761908196
Research
001.433 / KRU