Columbia subject headings:
Harderwijk (Netherlands)--Imprints.
Printers--Netherlands--Harderwijk.
Printing--Netherlands--Harderwijk--History.
Harvard subject headings:
Harderwijk (Netherlands)--Imprints.
Printing--Netherlands--Harderwijk--History.
Princeton subject headings:
Harderwijk (Netherlands)--Imprints.
Printers--Netherlands--Harderwijk--Directories.
Printing--Netherlands--Harderwijk--History.