APA-Zitierstil (7. Ausg.)

(2004). Threatened birds of the world 2004: Species factsheets for globally threatened birds produced by BirdLife International, the official red listing authority for birds for the IUCN red list. Birdlife International.

Chicago-Zitierstil (17. Ausg.)

Threatened Birds of the World 2004: Species Factsheets for Globally Threatened Birds Produced by BirdLife International, the Official Red Listing Authority for Birds for the IUCN Red List. Cambridge: Birdlife International, 2004.

MLA-Zitierstil (9. Ausg.)

Threatened Birds of the World 2004: Species Factsheets for Globally Threatened Birds Produced by BirdLife International, the Official Red Listing Authority for Birds for the IUCN Red List. Birdlife International, 2004.