Colyer, C. The Roman and medieval defences of the lower city,
Lincoln Archaeological Trust, 1975, 227-266 p..
Colyer, C. .
The Roman and medieval defences of the lower city.
Lincoln: Lincoln Archaeological Trust, 1975, 227-266 p..
Colyer, C. (1975)
The Roman and medieval defences of the lower city,
Lincoln: Lincoln Archaeological Trust, 227-266 p.
Colyer, C.
(1975).
The Roman and medieval defences of the lower city. excavations at the Park, West Parade and Lucy Tower Stree. Lincoln: Lincoln Archaeological Trust, 227-266 p..
