New Light on Sweeney Todd, Thomas Peckett Prest, James Malcolm Rymer and Elizabeth Caroline Grey, by Helen R Smith (2002): PdfArchiviato il 29 gennaio 2016 in Internet Archive.
Poaching Engines and Boilers at Lloyd’s Paper Mills, Bow Bridge, London, The Engineer, July 26, 1867, p.70: PdfArchiviato il 18 novembre 2015 in Internet Archive.
The Paper-Maker and British Paper Trade Journal, November 1902, p.3: PdfArchiviato il 24 novembre 2015 in Internet Archive.
New Light on Sweeney Todd, Thomas Peckett Prest, James Malcolm Rymer and Elizabeth Caroline Grey, by Helen R Smith (2002): PdfArchiviato il 29 gennaio 2016 in Internet Archive.
Poaching Engines and Boilers at Lloyd’s Paper Mills, Bow Bridge, London, The Engineer, July 26, 1867, p.70: PdfArchiviato il 18 novembre 2015 in Internet Archive.
The Paper-Maker and British Paper Trade Journal, November 1902, p.3: PdfArchiviato il 24 novembre 2015 in Internet Archive.