APA (7th ed.) Citation

Fasser, E. T., & Julich, R. J. (2009). Hydrographs showing ground-water level changes for selected wells in the Lower Skagit River basin, Washington. USGS.

Chicago Style (17th ed.) Citation

Fasser, E. T., and R. J. Julich. Hydrographs Showing Ground-water Level Changes for Selected Wells in the Lower Skagit River Basin, Washington. [Reston, Va.]: USGS, 2009.

MLA (9th ed.) Citation

Fasser, E. T., and R. J. Julich. Hydrographs Showing Ground-water Level Changes for Selected Wells in the Lower Skagit River Basin, Washington. USGS, 2009.