Hutchison, P. (2019). Forgotten history of everyday inventions. 12 Story Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHutchison, Patricia. Forgotten History of Everyday Inventions. North Mankato, MN: 12 Story Library, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHutchison, Patricia. Forgotten History of Everyday Inventions. 12 Story Library, 2019.
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