J. A. The history and growth of the United States Census, prepared for the Senate Committee on the Census, by Carroll D.Wright, Commissioner of Labor, assisted by William C. Hunt, Chief Statistician, Twelfth Census. "Washington 1900. nt [Internet]. 1. januar 1900 [henvist 21. januar 2026];3. Tilgængelig hos: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/58132