| 其他書名 | A Guide for the 1974 SERA Winter Business Meeting of the National Speleological Society at Decatur, Alabama, February 1974 |
| 出版 | Decatur Alabama Grotto of the National Speleological Society, 1974 |
| URL | http://books.google.com.hk/books?id=2AzKtgAACAAJ&hl=&source=gbs_api |