| ID | 030749 |
| Call Number | 306.42/WEB |
| Title Proper | Unobtrusive measures |
| Other Title Information | non reactive research in social sciences |
| Language | ENG |
| Author | Sechrest, Lee ; Web, Eugene J ; Campbell, Donald T ; Schwartz, Richard D |
| Publication | Chicago, Rand Mc Nally and Company, 1966. |
| Description | viii, 225p.+ 22cm. |
| Series | Rand McNally sociology series |
| Classification Number | 306.42 |
| Key Words | Social Sciences - Research |