Reston, Va. : Washington, D.C. : U.S. Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O., 1986

Oxford : New York : Clarendon Press ; Oxford University Press, 1993

New York : Norton, 1995
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New York : Oxford University Press, 1996

London : New York : Arnold ; Distributed in U.S.A. by Oxford University Press, 2004

New York : Oxford University Press, 1999

[Reston, Va.] : Denver, CO :; Washington : Dept. of the Interior, U.S. Geological Survey ; For sale by the Books and Open-File Reports Section,; U.S. G.P.O., 1988

New York : Facts on File, 1994

Harmondsworth, Eng. : Penguin Books, 1976

Cambridge ; New York, NY, USA : Cambridge University Press, 1996

Washington : U.S. G.P.O., 1988