Columbia subject headings:
Earthquakes--Venezuela--History--19th century--Sources.
Seismology--Venezuela--History--Sources.
Venezuela--History--1810-1830--Sources.
Harvard subject headings:
Earthquakes--Venezuela--History--19th century.
Seismology--Venezuela--History.
Venezuela--History--1810-1830.
Princeton subject headings:
Earthquakes--Venezuela--History--19th century--Sources.
Seismology--Venezuela--History--Sources.
Venezuela--History--1810-1830--Sources.