“W.H. Salzmann, Bedrijfsleven, Overheid En Handelsbevordering. The Netherlands Chamber of Commerce in the United States, Inc. 1903-1987”. BMGN - Low Countries Historical Review 111, no. 3 (January 1, 1996): 422–424. Accessed November 26, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104960.