Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://www.allsaintsbrockhampton.org/history/
http://www.londonremembers.com/subjects/william-richard-lethaby
http://www.oxforddnb.com/templates/article.jsp?articleid=34503&back=
https://www.westminster-abbey.org/abbey-commemorations/commemorations/william-richard-lethaby/
https://wikivisually.com/wiki/William_Lethaby
http://www.victorianweb.org/art/architecture/lethaby/bio.html
http://www.victorianweb.org/art/architecture/lethaby/index.html
http://www.artandarchitecture.org.uk/images/conway/89229745.html
http://www.scottisharchitects.org.uk/architect_full.php?id=201929
http://www.artandarchitecture.org.uk/images/conway/c37f31fa.html
http://blueplaquesguy.byethost24.com/content/Lethaby_William_Richard_WC1X.html?i=1