Não informado. (2001). Sprechsaal: International ceramics & glass magazine. Sprechsaal Verlag.
Chicagoスタイル(17版)引用形式Não informado. Sprechsaal: International Ceramics & Glass Magazine. Coburg, Alemanha: Sprechsaal Verlag, 2001.
MLA(8版)引用形式Não informado. Sprechsaal: International Ceramics & Glass Magazine. Sprechsaal Verlag, 2001.
警告: この引用は必ずしも正確ではありません.