Ries, H. (1906). Clays: Their occurrence, properties, and uses : with especial reference to those of the United States. J. Wiley & Sons ; Chapman & Hall.
Cita Chicago (17th ed.)Ries, Heinrich. Clays: Their Occurrence, Properties, and Uses : With Especial Reference to Those of the United States. New York : London: J. Wiley & Sons ; Chapman & Hall, 1906.
Cita MLA (8th ed.)Ries, Heinrich. Clays: Their Occurrence, Properties, and Uses : With Especial Reference to Those of the United States. J. Wiley & Sons ; Chapman & Hall, 1906.
Atenció: Aquestes cites poden no estar 100% correctes.