Columbia subject headings:
Harvard subject headings:
Agricultural laborers--Dominican Republic--Congresses.
Dominican Republic--Emigration and immigration--Congresses.
Haiti--Emigration and immigration--Congresses.
Haitians--Employment--Dominican Republic--Congresses.
Princeton subject headings:
Agricultural laborers--Dominican Republic--Congresses.
Dominican Republic--Emigration and immigration--Congresses.
Haiti--Emigration and immigration--Congresses.
Haitians--Employment--Dominican Republic--Congresses.