Shapiro, J. L., Robinson, G. R., Jr., & Geological Survey. (2019). User's guide for assessment tract aggregation GUI (ATA GUI): A graphical user interface for the AggtEx.fn R Script. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationShapiro, Jason L., Gilpin R. Robinson, Jr, and Geological Survey. User's Guide for Assessment Tract Aggregation GUI (ATA GUI): A Graphical User Interface for the AggtEx.fn R Script. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2019.
MLA (8th ed.) CitationShapiro, Jason L., et al. User's Guide for Assessment Tract Aggregation GUI (ATA GUI): A Graphical User Interface for the AggtEx.fn R Script. U.S. Department of the Interior, U.S. Geological Survey, 2019.
Warning: These citations may not always be 100% accurate.