Columbia subject headings:
Harvard subject headings:
Dominican Republic--Foreign relations--Haiti.
Dominican-Haitian Conflict, 1937--Sources.
Haiti--Foreign relations--Dominican Republic.
Haitians--Dominican Republic--History--20th century--Sources.
Princeton subject headings:
Dominican Republic--Foreign relations--Haiti--Sources.
Dominican Republic--History--1930-1961--Sources.
Haiti--Foreign relations--Dominican Republic--Sources.
Haiti--History--1934---Sources.