Winterbottom, J. M. (1965). A preliminary list of the birds of Hopetown District. Percy FitzPatrick Institute of African Ornithology.
Lua i Stíl Chicago (17ú heag.)Winterbottom, J. M. A Preliminary List of the Birds of Hopetown District. [Rondebosch, C.P. South Africa]: Percy FitzPatrick Institute of African Ornithology, 1965.
Lua MLA (8ú heag.)Winterbottom, J. M. A Preliminary List of the Birds of Hopetown District. Percy FitzPatrick Institute of African Ornithology, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.