Columbia subject headings:
Koninklijke Bibliotheek (Netherlands)--History.
National libraries--Netherlands--History--20th century.
Reedijk, C. (Cornelis), 1921-
Harvard subject headings:
Koninklijke Bibliotheek (Netherlands)--History.
National libraries--Netherlands--History--20th century.
Reedijk, C. (Cornelis), 1921-
Princeton subject headings:
Koninklijke Bibliotheek (Netherlands)--History.
National libraries--Netherlands--History--20th century.
Reedijk, C. (Cornelis), 1921-