| 其他書名 | The Philosophy and Methods of the Urban League and the Fortieth Anniversary National Urban League Annual Conference Held at Grand Rapids, Michigan, September 3-8, 1950/by Roy E. Norris |
| 出版 | National Urban League, 1950 |
| URL | http://books.google.com.hk/books?id=vUvMtgAACAAJ&hl=&source=gbs_api |