Columbia subject headings:
Keller, Gottfried, 1819-1890--Adversaries--Dictionaries--German.
Keller, Gottfried, 1819-1890--Characters--Dictionaries--German.
Keller, Gottfried, 1819-1890--Family--Dictionaries--German.
Keller, Gottfried, 1819-1890--Friends and associates--Dictionaries--German.
Harvard subject headings:
Keller, Gottfried, 1819-1890--Adversaries--Dictionaries--German.
Keller, Gottfried, 1819-1890--Characters--Dictionaries--German.
Keller, Gottfried, 1819-1890--Family--Dictionaries--German.
Keller, Gottfried, 1819-1890--Friends and associates--Dictionaries--German.
Princeton subject headings:
Dictionaries.
Keller, Gottfried, 1819-1890--Characters--Dictionaries.
Keller, Gottfried, 1819-1890--Dictionaries.
Keller, Gottfried, 1819-1890--Friends and associates--Dictionaries.