Acid rain.
Contributors: Geological Survey (U.S.)
Series: Water fact sheet; Open-file report -- 87-399.; U.S. Geological Survey open-file report -- 87-399.
Publisher: U.S. Geological Survey, Dept. of the Interior
Published: 1987
Place of publication: [Reston, Va.]
Language: eng
Subjects: Acid rain.
Notes: Caption title.

"October 1987"--P. [2].