Hopper, R. (2009). The ceramic spectrum: A simplified approach to glaze and color development (2nd ed.). The American Ceramic Society.
Citazione stile Chigago Style (17a edizione)Hopper, Robin. The Ceramic Spectrum: A Simplified Approach to Glaze and Color Development. 2nd ed. Westerville, Ohio: The American Ceramic Society, 2009.
Citatione MLA (9a ed.)Hopper, Robin. The Ceramic Spectrum: A Simplified Approach to Glaze and Color Development. 2nd ed. The American Ceramic Society, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.