APA (7th ed.) Citation

Smith, G. C., Morin, R. S., & McCaskill, G. L. (2012). Ozone injury to forests across the northeast and north central United States, 1994 - 2010. U.S. Dept. of Agriculture, Forest Service, Northern Research Station.

Chicago Style (17th ed.) Citation

Smith, Gretchen Cole, R. S. Morin, and George L. McCaskill. Ozone Injury to Forests Across the Northeast and North Central United States, 1994 - 2010. Newtown Square, PA: U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2012.

MLA (9th ed.) Citation

Smith, Gretchen Cole, et al. Ozone Injury to Forests Across the Northeast and North Central United States, 1994 - 2010. U.S. Dept. of Agriculture, Forest Service, Northern Research Station, 2012.