| 其他書名 | Technical Report I : the Effects of Monetary Incentives on Survey Responses : Experimental Evidence from a Longitudinal Study of Economically Disadvantaged Youths |
| 出版 | Mathematica Policy Research, 1981 |
| URL | http://books.google.com.hk/books?id=chE5PAAACAAJ&hl=&source=gbs_api |