APA (7th ed.) Citation

Winston, R. B. (1999). Upgrade to MODFLOW-GUI: Addition of MODPATH, ZONEBDGT, and additional MODFLOW packages to the U.S. Geological Survey MODFLOW-96 graphical-user interface. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Winston, Richard B. Upgrade to MODFLOW-GUI: Addition of MODPATH, ZONEBDGT, and Additional MODFLOW Packages to the U.S. Geological Survey MODFLOW-96 Graphical-user Interface. Reston, Virginia: U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Winston, Richard B. Upgrade to MODFLOW-GUI: Addition of MODPATH, ZONEBDGT, and Additional MODFLOW Packages to the U.S. Geological Survey MODFLOW-96 Graphical-user Interface. U.S. Geological Survey, 1999.

Warning: These citations may not always be 100% accurate.