Freeman Bibliographical Database
| Identifier: | A6987 |
| Date: | 1872 |
| Concise reference: | Hudson, W. H. 1872. On the habits of the swallows of the genus Progne met with the Argentine Republic. With notes by P. L. Sclater. Proceedings of the Zoological Society of London 40 no. 2: 605-609. [CUL-DAR.LIB.PER-U1399] |