Long-term research into the effects of acidic deposition in Rocky Mountain National Park: Summary report 1980 -1984
National Park Service Water Resources Division; National Park Service
Acid Rain and Air Pollution in Desert Park Areas: Proceedings of a Workshop, May 16-18, 1988 and Management Recommendations
Saguaro National Park; National Park Service
Rocky Mountain acidification study
National Park Service Water Resources Division; National Park Service
