1. Agricola, G., 1556, De re metallica: 1st edition, Basil, Hieronymus Froben & Nicolaus Episcopius, 594 p.
2. American Journal of Science, 1853, v. XV.
3. Baker, T.L., 1985, A Field Guide to American Windmills: University of Oklahoma Press, 516 p.
4. Bell, T.J., 1881, History of the water supply of the world: Cincinnati, Ohio, Peter G. Thomson, Publisher, 134 p.
5. Bullard, L., 2004, Healing waters – Missouri’s historic mineral springs and spas: University of Missouri Press, 243 p.