Columbia subject headings:
Balch Institute for Ethnic Studies. Research Library--Catalogs.
Ethnic groups--History--Sources--Bibliography--Catalogs.
Ethnic groups--Manuscripts--Catalogs.
Manuscripts on microfilm--Catalogs.
Manuscripts, American--Pennsylvania--Philadelphia--Catalogs.
Harvard subject headings:
Balch Institute for Ethnic Studies. Library--Catalogs.
Balch Institute for Ethnic Studies. Library--Microform catalogs.
Immigrants--United States--History--Sources--Bibliography--Catalogs.
Immigrants--United States--Manuscripts--Catalogs.
Manuscripts, American--Pennsylvania--Philadelphia--Catalogs.
United States--Emigration and immigration--History--Sources--Bibliography--Catalogs.
Princeton subject headings:
Americans--Foreign countries--Bibliography--Catalogs.
Balch Institute for Ethnic Studies. Research Library--Catalogs.
Immigrants--United States--Bibliography--Catalogs.
Minorities--United States--Bibliography--Catalogs.