Doughty, K. (2014). Adding layers: Color, design & imagination : 15 original quilt projects from Kathy Doughty of Material obsession. StashBooks, an imprint of C&T Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDoughty, Kathy. Adding Layers: Color, Design & Imagination : 15 Original Quilt Projects from Kathy Doughty of Material Obsession. Lafayette, CA: StashBooks, an imprint of C&T Publishing, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDoughty, Kathy. Adding Layers: Color, Design & Imagination : 15 Original Quilt Projects from Kathy Doughty of Material Obsession. StashBooks, an imprint of C&T Publishing, 2014.
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