Wallace Online Bibliographical Database
| Identifier: | S464 |
| Date: | 1893.03.00 |
| Concise reference: | Wallace, A. R. 1893. Inaccessible valleys: a study in physical geography. Nineteenth Century 33 (193): 391-404. |
John van Wyhe, ed. 2012-. Wallace Online (http://wallace-online.org/) 