National Acid Precipitation Assessment Program [microform] : hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundredth Congress, second session, April 27, 1988.

"No. 125."

Models planned for use in the NAPAP integrated assessment.

Mode of access: Internet.

Assessment plan update.

Mode of access: Internet.

Characteristics of lakes in the western United States /

"EPA/600/3-86/054."