APA (7th ed.) Citation

See, R. B., Schroder, L. J., & Willoughby, T. C. (1989). External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

See, Randolph B., L. J. Schroder, and Timothy C. Willoughby. External Quality-assurance Results for the National Atmospheric Deposition Program and the National Trends Network During 1987. Denver, Colorado: U.S. Geological Survey, 1989.

MLA (9th ed.) Citation

See, Randolph B., et al. External Quality-assurance Results for the National Atmospheric Deposition Program and the National Trends Network During 1987. U.S. Geological Survey, 1989.