Hvidt, K. (1973) “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. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51398 (Set: 5 december 2025).