The focus group guidebook-5
Krueger,Richard
The focus group guidebook-5 - 2nd Ed.; - London SAGE, 1998 - xxi,93p.; ill. 18cm
076190820x
Research
001.433 / KRU
The focus group guidebook-5 - 2nd Ed.; - London SAGE, 1998 - xxi,93p.; ill. 18cm
076190820x
Research
001.433 / KRU