United States. National Oceanic and Atmospheric Administration. (1989). Earthquake of October 15, 1979, Imperial Valley, California. [National Oceanic and Atmospheric Administration].
Chicago Style (17th ed.) CitationUnited States. National Oceanic and Atmospheric Administration. Earthquake of October 15, 1979, Imperial Valley, California. [Boulder, Colo.]: [National Oceanic and Atmospheric Administration], 1989.
MLA (8th ed.) CitationUnited States. National Oceanic and Atmospheric Administration. Earthquake of October 15, 1979, Imperial Valley, California. [National Oceanic and Atmospheric Administration], 1989.
Warning: These citations may not always be 100% accurate.