BioStor
 | On the Birds of the Orinoco region (1902) Novitates Zoologicae 9: 1-135 |
 | Types of birds in the Tring Museum. B. Types in the General Collection (1920) Novitates Zoologicae 27: 425-505 |
 | A review of the vireonine genus Pachysylvia W E C Todd (1929) Proceedings of The Biological Society of Washington 42: 181-205 |
 | Birds of Lower Amazonia (1941) Bulletin of The Museum of Comparative Zoology 88: 83-344 |