Zieren, Gregory R. “Late Nineteenth-Century Industrialization and the Forces of Assimilation on German Immigrants: The Views of Economist August Sartorius Von Waltershausen”. Yearbook of German-American Studies 21 (December 1, 1986): 127–136. Accessed November 3, 2024. https://journals.ku.edu/ygas/article/view/19337.