APA (7th ed.) Citation

Hackett, O. M. (1963). Ground-water levels in the United States, 1956-60: Northwestern states. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Hackett, O. M. Ground-water Levels in the United States, 1956-60: Northwestern States. Washington, D.C.: U.S. G.P.O., 1963.

MLA (8th ed.) Citation

Hackett, O. M. Ground-water Levels in the United States, 1956-60: Northwestern States. U.S. G.P.O., 1963.