APA (7th ed.) Citation

Ludtke, A. S., Woodworth, M. T., & Marsh, P. S. (2000). Quality-assurance results for routine water analyses in U.S. Geological Survey laboratories, water year 1998. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ludtke, Amy S., Mark T. Woodworth, and Philip S. Marsh. Quality-assurance Results for Routine Water Analyses in U.S. Geological Survey Laboratories, Water Year 1998. Denver, Colorado: U.S. Geological Survey, 2000.

MLA (9th ed.) Citation

Ludtke, Amy S., et al. Quality-assurance Results for Routine Water Analyses in U.S. Geological Survey Laboratories, Water Year 1998. U.S. Geological Survey, 2000.