APA (7th ed.) Citation

Gregory, H. E., & Ellis, E. E. (1909). Underground water resources of Connecticut. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Gregory, Herbert E., and Edwin E. Ellis. Underground Water Resources of Connecticut. Washington, D.C.: United States Department of the Interior, Geological Survey, 1909.

MLA (9th ed.) Citation

Gregory, Herbert E., and Edwin E. Ellis. Underground Water Resources of Connecticut. United States Department of the Interior, Geological Survey, 1909.