Longitude by Dava Sobel
Illustrated Longitude by Dava Sobel & William J.H. Andrews
The Quest for Longitude edited by William J.H. Andrews
John Harrison, Clockmaker at Barrow; Near Barton upon Humber; Lincolnshire: The Wooden Clocks 1713-1730 by Andrew King
Even Newton Could Be Wrong: The Story of Harrison's First Three Sea Clocks by William J.H. Andrews
The Timekeeper that Won the Longitude Prize by Anthony G. Randall
The Scandalous Neglect of Harrison's Regulator Science by Martin Burgess
Chapter in Precision Pendulum Clocks by Derek Roberts
The Lost Science of John "Longitude" Harrison by William Laycock
Marine Chronometer by Rupert T. Gould R.N.
John Harrison by Humphrey Quill
Time Restored by Jonathan Betts
Harrison Decoded - Towards a Perfect Pendulum Clock - Editied by Rory McEvoy and Jonathan Betts