Columbia subject headings:
Spain--History--1868-1931.
Spanish-American War, 1898.
Harvard subject headings:
Spain--Economic conditions--19th century.
Spain--Politics and government--1868-1931.
Spain--Social conditions--1868-1931.
Spanish-American War, 1898
Princeton subject headings:
Spain--History--1868-1931.
Spanish-American War, 1898.