The focus group guidebook-6
Krueger,Richard
The focus group guidebook-6 - 2nd Ed.; - London SAGE, 1998 - xix,139p.; ill. 18cm
0761908161
Research
001.433 / KRU
The focus group guidebook-6 - 2nd Ed.; - London SAGE, 1998 - xix,139p.; ill. 18cm
0761908161
Research
001.433 / KRU