Kulagowski, Y. (2006). Waring glass. Neues Glas.
Lua i Stíl Chicago (17ú heag.)Kulagowski, Yvonne. "Waring Glass." Neues Glas 2006.
Lua MLA (8ú heag.)Kulagowski, Yvonne. "Waring Glass." Neues Glas, 2006.
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