สํามะโนประชากรเดนมาร์ก, ปี 1870

"Denmark, Census, 1870." Database with images. FamilySearch. https://familysearch.org : 3 December 2024. From "1860 Denmark Census". Database and images. MyHeritage. https://www.myheritage.com : 17 January 2017. Rigsarkivet, København, Danmark (National Archives, Copenhagen), Denmark.