| 其他書名 | Or, A Challenge and Its Sequel : Letters Exchanged Between Dr. G. G. Coulton and Mr. Arnold Lunn, and Printed by the Former with the Latter's Permission |
| 出版 | Barnicott and Pearce, 1935 |
| URL | http://books.google.com.hk/books?id=xuFgAAAAMAAJ&hl=&source=gbs_api |