APA (7th ed.) Citation

Oppenheimer, D. H., Klein, F. W., & Eaton, J. P. (1992). The first 20 years of CALNET, the northern California seismic network. Dep. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Oppenheimer, David H., Fred W. Klein, and Jerry P. Eaton. The First 20 Years of CALNET, the Northern California Seismic Network. Menlo Park, Calif: Dep. of the Interior, U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Oppenheimer, David H., et al. The First 20 Years of CALNET, the Northern California Seismic Network. Dep. of the Interior, U.S. Geological Survey, 1992.