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Enchanted Learning. (2000). Late Nineteenth Century Inventors and Inventions.

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Famous Women Inventors. (2008). Margaret Knight: Invention of the Paper Bag Machine.

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History. (2015). Industrial Revolution.

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Karwatka, Dennis. (2010, January). Margaret Knight–19th Century Female Inventor.

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Kelly, Kate. (2014). Margaret Knight (1838-1914), Inventor of Paper Grocery Bag.

    Retrieved from http://americacomesalive.com/2013/03/19/margaret-knight-1838-1914-successful-inventor/#.VVC9QWRVikp

National Cable Satellite Corporation (2011, July 14). Early Female Inventor.

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Quirky Incorporated (2015). Celebrating Women’s History Month: Margaret Knight.

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Santa Maria, Cara. (2012, April 6). Women in Science: Why so Few?

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