APA (7th ed.) Citation

Simpson, J. C., & Olsen, A. R. (1990). Uncertainty in North American wet deposition isopleth maps: Effect of site selection and valid sample criteria. U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory.

Chicago Style (17th ed.) Citation

Simpson, J. C., and A. R. Olsen. Uncertainty in North American Wet Deposition Isopleth Maps: Effect of Site Selection and Valid Sample Criteria. Research Triangle Park, NC: U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory, 1990.

MLA (9th ed.) Citation

Simpson, J. C., and A. R. Olsen. Uncertainty in North American Wet Deposition Isopleth Maps: Effect of Site Selection and Valid Sample Criteria. U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory, 1990.