Columbia subject headings:
Harvard subject headings:
Abolitionists--Puerto Rico--Biography.
Betances, Ramón Emeterio, 1827-1898.
Politicians--Puerto Rico--Biography.
Puerto Rico--History--To 1898.
Princeton subject headings:
Betances, Ramón Emeterio, 1827-1898--Political and social views.
Politicians--Puerto Rico.
Puerto Rico--History--To 1898.
Revolutionaries--Puerto Rico.