5 literature references for Hydroprogne caspia (Pallas, 1770):
| Author: |
– |
| Year: |
1996 |
| Title: |
– |
| Source: |
database, NODC Taxonomic Code |
| Author: |
– |
| Year: |
2011 |
| Title: |
– |
| Source: |
Zoonomen - Zoological Nomenclature Resource, 2011.04.02 |
| Author: |
– |
| Year: |
2011 |
| Title: |
– |
| Source: |
IOC World Bird List, Master List v2.9 |
| Author: |
– |
| Year: |
2011 |
| Title: |
– |
| Source: |
AOU Check-List (08-2011) |
| Author: |
American Ornithologists' Union |
| Year: |
2006 |
| Title: |
Forty-seventh supplement to the American Ornithologists' Union Check-list of North American Birds |
| Source: |
The Auk, vol. 123, no. 3 |
