| 其他書名 | An Estimate of the Potential Costs of Extending Unemployment Compensation Coverage to Hired Farm Laborers |
| 出版 | Bureau of Business and Economic Research, College of Business and Public Administration, University of North Dakota, 1958 |
| URL | http://books.google.com.hk/books?id=RgPoAAAAMAAJ&hl=&source=gbs_api |