Duncan, David Ewing.
The Calendar : The 5000 year struggle to align the clock and the heavens and what happened to the missing ten days - London Fourth Estate 1998 - xxi, 360 p.
1857029798
The Calendar : The 5000 year struggle to align the clock and the heavens and what happened to the missing ten days - London Fourth Estate 1998 - xxi, 360 p.
1857029798