Proceedings of the U.S. Geological Survey Global Change Research Forum, Herndon, Virginia, March 18-20, 1991 /
U.S. Geological Survey Global Change Research Forum(1991 :Herndon, Va.)
Kelmelis, John A.
Snow, Mitchell.
USGS Global Change Coordinating Committee.
Washington, D.C. : U.S. G.P.O. ; Denver, CO : U.S. Geological Survey, Map Distribution,
1993.
Includes bibliographical references and index.
Climatic changes