Non abbiamo ancora una biografia di C. N. Johns.
Pubblicato in Inglese
Pilgrims' Castle , David's Tower and Qal'at Ar-Rabad
2019
Pilgrims¿ Castle (`atlit) David¿s Tower (jerusalem) and Qal`at Ar-Rabad (`ajlun)
2020

Pilgrims' castle ('Atlit), David's Tower (Jerusalem), and Qal'atar-Rabad ('Ajlun)
1997

Criccieth Castle
1984

Criccieth Castle = Castell Cricieth
1984

Caerphilly Castle, mid Glamorgan =
1978