| 其他書名 | 50 All-Original Ultrahard Puzzles - The Ultimate Challenge |
| 出版 | Simon and Schuster, 2001-03 |
| 主題 | Crafts & Hobbies / GeneralGames & Activities / Crosswords / General |
| ISBN | 06848719639780684871967 |
| URL | http://books.google.com.hk/books?id=Gx6Sjha6iBoC&hl=&source=gbs_api |
| EBook | SAMPLE |