Skead, C. J. (1965). Birds of the Albany (Grahamstown) District. Percy FitzPatrick Institute of African Ornithology.
Chicago-viite (17. p.)Skead, C. J. Birds of the Albany (Grahamstown) District. [Rondebosch, C.P., South Africa]: Percy FitzPatrick Institute of African Ornithology, 1965.
MLA-viite (8. p.)Skead, C. J. Birds of the Albany (Grahamstown) District. Percy FitzPatrick Institute of African Ornithology, 1965.
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