ぎょく せき ［0］ 【玉石】
たま いし ［0］［2］ 【玉石】
出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2019/09/11 06:39 UTC 版)
- ^ 「礫とは」コトバンク、ブリタニカ国際大百科事典 小項目事典の解説より。
- ^ スコットランド国立辞書協会（1999） 簡潔スコットランド辞書 。エジンバラ、ポリゴン。
- ^ “Cobble”. Oxford English Dictionary. Oxford University Press. 2012年4月4日閲覧。
- ^ Richard Cavendish ,"Death of Guiseppe Verdi",History Today,1January 2001.以下、引用。"as he sat on his hotel bed dressing, he began to shake, said to the maid, ‘One button more or one button less’ and was knocked unconscious by a stroke. As word spread, straw was laid on the cobbled street outside to muffle the sound of horses and carriages, and ..."
- ^ a b Potter, Chris (2004年10月14日). “Were Pittsburgh's original finished roads and streets paved with cobblestone, Belgian block or some other type of brick?”. Pittsburgh City Paper 2009年9月23日閲覧. "In fact, Belgian block refers not to the type of stone but the way it is cut: in rectangles. People often refer to roads paved this way as "cobblestone streets," but that isn't strictly correct. Cobblestones are rounded, typically because they've been worn smooth by rivers. They might be hell to drive on, but they were cheap: you could just dredge them up from the river..."
- ^ “Architect: Open Salem pedestrian mall to cars, parking”. The Salem News. (2011年4月13日) 2011年4月23日閲覧。
- ^ Frances Page, Cecilia (2010). Authentic Insights.