Birds to watch: the ICBP world check-list of threatened birds.
Washington: Smithsonion Institution Press, 1988. Octavo, paperback. More
Washington: Smithsonion Institution Press, 1988. Octavo, paperback. More
Girton: International Council for Bird Preservation, 1988. Octavo, paperback. International Council for Bird Preservation Technical Publication No. 8. More
Princeton: Princeton University Press, 1999. Octavo, softcover. The volume covers such topics as the reasons for extinctions, the best ways to measure biodiversity, and the benefits and drawbacks of policies like captive breeding. More