| 其他書名 | Hundreds of Programs to Serve the Disadvantaged, But who Knows about Them? To what Extent is Failure to Communicate Information a Factor in Disadvantage?. |
| 出版 | Information Canada, 1973 |
| URL | http://books.google.com.hk/books?id=kiP5T4tmuOYC&hl=&source=gbs_api |