Columbia subject headings:
Academic librarians--Germany--Biography--Dictionaries.
Bibliographers--Germany--Biography--Dictionaries.
Librarians--Germany--Biography--Dictionaries.
Library science--Germany--Bio-bibliography.
Scholars--Germany--Biography--Dictionaries.
Harvard subject headings:
Academic librarians--Germany--Biography--Dictionaries.
Bibliographers--Germany--Biography--Dictionaries.
Librarians--Germany--Biography--Dictionaries.
Library science--Germany--Bio-bibliography.
Scholars--Germany--Biography--Dictionaries.
Princeton subject headings:
Academic librarians--Germany--Biography--Dictionaries.
Bibliographers--Germany--Biography--Dictionaries.
Librarians--Germany--Biography--Dictionaries.
Library science--Germany--Bio-bibliography.
Scholars--Germany--Biography--Dictionaries.