Annual report ... and findings update /
National Acid Precipitation Assessment Program.

APA Citation

National Acid Precipitation Assessment Program (U.S.). Office of the Director. (1990). Annual report ... and findings update. Washington, D.C.: The Office.

MLA Citation

National Acid Precipitation Assessment Program (U.S.). Office of the Director. Annual Report ... And Findings Update. Washington, D.C.: The Office, 1990.

Warning: These citations may not always be complete (especially for serials).