✦ LIBER ✦
Unobtrusive Measures: Nonreactive Research in the Social Sciences. Eugene J. Webb, Donald T. Campbell, Richard D. Schwartz, and Lee Sechrest
✍ Scribed by Andrew P. Vayda
- Book ID
- 111805186
- Publisher
- American Anthropological Association
- Year
- 1968
- Tongue
- English
- Weight
- 208 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0002-7294
No coin nor oath required. For personal study only.