The Clements checklist of the birds of the world /
Clements, James F.
Clements, James F.Birds of the world.
Cornell University.Laboratory of Ornithology.
American Birding Association.
London : Christopher Helm,
2007.
"The official world checklist of the American Birding Association. Published in collaboration with the Cornell Laboratory of Ornithology."
Rev. ed. of: Birds of the world, 2000.
Includes bibliographical references and index.
Birds.
Birds