S. A. O. S. checklist of southern African birds.
Pretoria: Southern African Ornithological Society, 1980. Octavo, tipped in frontispiece, signature, worn laminated boards. More
Pretoria: Southern African Ornithological Society, 1980. Octavo, tipped in frontispiece, signature, worn laminated boards. More
London: Hutchinson, 1983. Octavo, fine copy in dustwrapper. More