Columbia subject headings:
Central America--Emigration and immigration--History--Bibliography.
Central America--Emigration and immigration--History.
Palestine--Emigration and immigration--History--Bibliography.
Palestine--Emigration and immigration--History.
Palestinian Arabs--Central America--History--Bibliography.
Palestinian Arabs--Central America--History.
Harvard subject headings:
Central America--History--20th century.
Immigrants--Central America--History--20th century.
Palestinian Arabs--Central America--History--20th century.
Princeton subject headings:
Central America--History--20th century.
Immigrants--Central America--History--20th century.
Palestinian Arabs--Central America--History--20th century.