National Acid Precipitation Assessment Program (U.S.), Canada. Environment Canada, Acid Rain Foundation, & Symposium Effects of Air Pollutants on Forest Ecosystems. (1985). Air pollutants effects on forest ecosystems: Papers presented at the Symposium : Effects of Air Pollutants on Forest Ecosystems, May 8-9, 1985, St. Paul, MN. The Foundation.
Chicago Style (17th ed.) CitationNational Acid Precipitation Assessment Program (U.S.), Canada. Environment Canada, Acid Rain Foundation, and Symposium Effects of Air Pollutants on Forest Ecosystems. Air Pollutants Effects on Forest Ecosystems: Papers Presented at the Symposium : Effects of Air Pollutants on Forest Ecosystems, May 8-9, 1985, St. Paul, MN. St. Paul, MN: The Foundation, 1985.
MLA (9th ed.) CitationNational Acid Precipitation Assessment Program (U.S.), et al. Air Pollutants Effects on Forest Ecosystems: Papers Presented at the Symposium : Effects of Air Pollutants on Forest Ecosystems, May 8-9, 1985, St. Paul, MN. The Foundation, 1985.