Columbia subject headings:
German Americans--Bibliography.
Germans--Canada--Bibliography.
Germany--Relations--United States--Bibliography.
United States--Civilization--German influences--Bibliography.
United States--Relations--Germany--Bibliography.
Harvard subject headings:
German Americans--Bibliography.
Germans--Canada--Bibliography.
Germany--Relations--United States--Bibliography.
United States--Civilization--German influences--Bibliography.
United States--Relations--Germany--Bibliography.
Princeton subject headings:
German Americans--Bibliography.
Germans--Canada--Bibliography.
Germany--Relations--United States--Bibliography.
United States--Civilization--German influences--Bibliography.
United States--Relations--Germany--Bibliography.