Columbia subject headings:
Harvard subject headings:
Foraker act, 1900 (Puerto Rico)
Puerto Rico--Foreign relations--United States.
Puerto Rico--History--1898-1952
United States--Foreign relations--Puerto Rico.
Princeton subject headings:
Foraker act, 1900 (Puerto Rico)
Puerto Rico--Foreign relations--United States.
Puerto Rico--History--1898-1952.
United States--Foreign relations--Puerto Rico.