Levine D. John Laslett: Labor and the Left: A Study of Socialist and Radical Influences in the American Labor Movement, 1881-1924. Basic Books. New York, 1970. ht [Internet]. 1. januar 1971 [henvist 25. april 2024];12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51313