APA (7th ed.) Citation

Parkhurst, D. L., & Charlton, S. R. (2008). NetpathXL, an Excel interface to the program NETPATH (Version 1.0.). U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Parkhurst, David L., and Scott R. Charlton. NetpathXL, an Excel Interface to the Program NETPATH. Version 1.0. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2008.

MLA (9th ed.) Citation

Parkhurst, David L., and Scott R. Charlton. NetpathXL, an Excel Interface to the Program NETPATH. Version 1.0. U.S. Dept. of the Interior, U.S. Geological Survey, 2008.