United States. Geological Survey.
The San Fernando, California, earthquake of February 9, 1971 : a preliminary report / published jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration. - Washington : United States Government Printing Office, 1971. - vi, 254 p. : ill., maps. - Geological survey professional paper ; 733 .
Earthquakes--United States.
Seismology--Research.
Buildings--Earthquake effects.
The San Fernando, California, earthquake of February 9, 1971 : a preliminary report / published jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration. - Washington : United States Government Printing Office, 1971. - vi, 254 p. : ill., maps. - Geological survey professional paper ; 733 .
Earthquakes--United States.
Seismology--Research.
Buildings--Earthquake effects.