Bullard, L. (2004). Healing waters: Missouri's historic mineral springs and spas. University of Missouri Press.
Cita Chicago (17th ed.)Bullard, Loring. Healing Waters: Missouri's Historic Mineral Springs and Spas. Columbia: University of Missouri Press, 2004.
Cita MLA (9th ed.)Bullard, Loring. Healing Waters: Missouri's Historic Mineral Springs and Spas. University of Missouri Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.