Description
Item Description:"A contribution to the National Acid Precipiation Assessment Program."
"Funded wholly or in part by the U.S. Environmental Protection Agency under contract number 68-03-3249 to Lockheed Engineering and Management Services Company, Inc."--P. ii.
Shipping list number: 90-597-P.
"July 1990"--Cover.
"EPA/600/8-90/055."
Physical Description:viii, 92 pages : illustrations ; 28 cm.
Bibliography:Includes bibliographical references.