Columbia subject headings:
Guayana Region (Venezuela)--Boundaries.
Guayana Region (Venezuela)--Colonization--Environmental aspects.
Guayana Region (Venezuela)--Colonization.
Guayana Region (Venezuela)--History--18th century.
Guayana Region (Venezuela)--History--19th century.
Spain--Colonies--America--Administration--History--18th century.
Spain--Colonies--America--Administration--History--19th century.
Harvard subject headings:
Guayana Region (Venezuela)--History--18th century.
Princeton subject headings:
Guayana Region (Venezuela)--History--18th century.