Hvidt, Kristian. “Ulf Beijbom : Swedes in Chicago. A Demographic and Social Study of the 1846-80 Immigration. Studia Historica Upsaliensia. Bd. 38. Scandinavian University Books. Stockholm, Svenska Bokforlaget, 1972. 375 S”. Historisk Tidsskrift 12 (januar 1, 1973). Set december 5, 2025. https://tidsskrift.dk/historisktidsskrift/article/view/51398.