TY - SER AU - Karnosky, D.F. AU - Witter, J.A. AU - Gagnon, Z.E. AU - Reed, D.D. TI - Effects of Genotype onResponse of Populus Tremuloides Michx. to Ozone and Nitrogen Deposition KW - Genotypes KW - Ozone KW - Nitrogen Deposition ER -