HeadingZahrtmann, Christian Christopher used in: Bibliothèque nationale de France, Paris
Zahrtmann, Christian Christopher used in: Integrated Authority File (GND), Germany
Zahrtmann, Christian Christopher used in: HANS, SUB Göttingen (Germany)
Sources
Found inBaltic Pilot... Formerly published as the Danish pilot originally / compiled by the late vice-amiral Zahrtmann... 5th edition, 1912. — SBA. — BN Cat. gén.