TY  - RPRT
TI  - Earthquakes in the United States, April-June 1974
AU  - Ruth B. Simon
AU  - Carl W. Stover
AU  - W. J. Person
PY  - 1976
DO  - 10.3133/cir723b
UR  - https://pubs.usgs.gov/publication/cir723B
ID  - cir723B
ER  -