APA (7th ed.) Citation

Drost, B. W., Ely, D. M., & Lum, W. E., II. (1999). Conceptual model and numerical simulation of the ground-water-flow system in the unconsolidated sediments of Thurston County, Washington. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Drost, B. W., D. Matthew Ely, and W. E. Lum, II. Conceptual Model and Numerical Simulation of the Ground-water-flow System in the Unconsolidated Sediments of Thurston County, Washington. Tacoma, Washington: U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Drost, B. W., et al. Conceptual Model and Numerical Simulation of the Ground-water-flow System in the Unconsolidated Sediments of Thurston County, Washington. U.S. Geological Survey, 1999.