ZIMMERMANN, Manfred. Quellen zur deutschen Einwanderungsgeschichte in der Bibliothek der German Society of Pennsylvania in Philadelphia. Yearbook of German-American Studies, [S. l.], v. 34, p. 133–140, 1999. DOI: 10.17161/ygas.v34i.19124. Disponível em: https://journals.ku.edu/ygas/article/view/19124.. Acesso em: 17 may. 2024.