Great Britain — History -- Roman period, 55 B.C.-449 A.D. — Audiobooks
Holinshed's Chronicles, vol. 1 of 6, slice 5 of 9. England, early history
by Raphael Holinshed
History of the Britons (Historia Brittonum)
by active 796 Nennius
Ancient Man in Britain
by Donald A. (Donald Alexander) Mackenzie
Early Britain—Roman Britain
by John William Edward Conybeare