An atlas of speciation in African passerine birds.
London: Trustees of the British Museum (Natural History), 1970. Small folio, coloured frontispiece, maps, signature, bookplate, very good copy in dustwrapper. More
London: Trustees of the British Museum (Natural History), 1970. Small folio, coloured frontispiece, maps, signature, bookplate, very good copy in dustwrapper. More