Columbia subject headings:
Farm life--Germany--Isingen.
Frommer, Max.
Isingen (Germany)--Biography.
Isingen (Germany)--Social life and customs.
Harvard subject headings:
Farm life--Germany--Isingen.
Frommer, Max.
Isingen (Germany)--Biography.
Isingen (Germany)--Social life and customs.
Princeton subject headings:
Farm life--Germany (West)--Isingen.
Frommer, Max.
Isingen (Germany)--Biography.
Isingen (Germany)--Social life and customs.