APA (7th ed.) Citation

Zinn, B. A., & Konikow, L. F. (2005). MODFLOW data extractor program. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Zinn, Brendan A., and Leonard F. Konikow. MODFLOW Data Extractor Program. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2005.

MLA (9th ed.) Citation

Zinn, Brendan A., and Leonard F. Konikow. MODFLOW Data Extractor Program. U.S. Dept. of the Interior, U.S. Geological Survey, 2005.