Levine, D. (1971) “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”., Historisk Tidsskrift, 12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51313 (Set: 5 december 2025).