Nichols, G. (2006). Soda, clay, and fire. American Ceramic Society.
Dyfyniad Arddull ChicagoNichols, Gail. Soda, Clay, and Fire. Westerville, OH: American Ceramic Society, 2006.
Dyfyniad MLANichols, Gail. Soda, Clay, and Fire. American Ceramic Society, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.