Description
Item Description:"This project has been funded in part by the United States Environmental Protection Agency under assistance agreement number CE-006550-01 to the Texas Commission on Environmental Quality"--Title page verso
"August 2002."
"AS-186/02."
Physical Description:xiv, 162 pages : illustrations (some color), maps (some color) ; 28 cm
Bibliography:Includes bibliographical references (pages 140-152) and index.