| 其他書名 | Your Guide to Caves in the Mid-Atlantic |
| 出版 | Camino Books, 1991 |
| 主題 | Science / Earth Sciences / GeologyTravel / ReferenceTravel / United States / Northeast / Middle Atlantic (NJ, NY, PA) |
| ISBN | 09401591209780940159129 |
| URL | http://books.google.com.hk/books?id=inNFAAAAYAAJ&hl=&source=gbs_api |