APA (7th ed.) Citation

Cooley, R. L. (2004). A theory for modeling ground-water flow in heterogeneous media. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cooley, Richard L. A Theory for Modeling Ground-water Flow in Heterogeneous Media. Reston, Va: U.S. Geological Survey, 2004.

MLA (9th ed.) Citation

Cooley, Richard L. A Theory for Modeling Ground-water Flow in Heterogeneous Media. U.S. Geological Survey, 2004.