Columbia subject headings:
Cuba--History--1810-1899.
Imperialism.
Spain--Relations--United States.
Spanish-American War, 1898--Causes.
United States--Relations--Spain.
Harvard subject headings:
Cuba--History--1810-1899.
Imperialism.
Spain--Relations--United States.
Spanish-American War, 1898--Causes
United States--Relations--Spain.
Princeton subject headings:
Cuba--History--1810-1899.
Imperialism.
Spain--Relations--United States.
Spanish-American War, 1898--Causes.
United States--Relations--Spain.