Bullard, L. (2004). Healing waters: Missouri's historic mineral springs and spas. University of Missouri Press.
Chicago-čujuhus (17. p.)Bullard, Loring. Healing Waters: Missouri's Historic Mineral Springs and Spas. Columbia: University of Missouri Press, 2004.
MLA-čujuhus (9. p.)Bullard, Loring. Healing Waters: Missouri's Historic Mineral Springs and Spas. University of Missouri Press, 2004.
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