The shaping of Middle-Earth : the Quenta, the Ambarkanta and the annals : together with the earliest 'Silmarillion' and the first map /
Tolkien, J. R. R.(John Ronald Reuel),1892-1973.
Tolkien, Christopher.
London : HarperCollins,
2002, c1986.
Originally published: London : Allen & Unwin, 1986.