Míreanna comhchosúla: Guide to Cologne :
- Romanische Kirchen in Köln = Romanesque churches in Cologne = Eglises romanes a Cologne /
- Kölnische Kunst im Plakat = Cologne Art on Posters = Affiches d’oeuvres d’art de Cologne /
- A Guide to Washington Cathedral : The Cathedral Church of St. Peter and St. Paul /
- A pictorial guide to cathedral architecture /
- Guide to the St. Michaels Cathedral Brussels /
- A PICTORIAL GUIDE TO CATHEDRAL ARCHITECTURE /