Kraks blaa bog.
Kjøbenhavn : Krak
Vols. for 1957- have title: Kraks blå bog.
Vols. for 1990- published: Virum.
Vol. for 1944-1946 issued in combined form.
Vols. for 1925-1984 called also 16. årg-75. årg.
Description based on: 1911.