Key forests for threatened birds in Africa.
Cambridge: International Council for Bird Preservation, 1988. paperback, illustrations. Internationl Council for Bird Preservation Monograph No. 3. More
Cambridge: International Council for Bird Preservation, 1988. paperback, illustrations. Internationl Council for Bird Preservation Monograph No. 3. More
Cambridge: International Council for Bird Preservation, (1985. third edition). Octavo, 12 colour plates, fine copy in dustwrapper. volume two 24638. More