• Proceedings of the first international symposium on acid precipitation and the forest ecosystem 

      International symposium on acid precipitation and the forest ecosystem (USA, Columbua, Ohio : 12-15/May./1975); Dochinger, Leon S.; Seliga, Thomas A. (USDA Forest Service, 1976)
      These Proceedings report on the results of The First International Symposium on Acid Precipitation and the Forest Ecosystem which was held at The Ohio State University, Columbus, Ohio, U.S.A., ...