Harvey, J. (1971). The Master builders: Architecture in the middle ages. Thames and Hudson.
Lua i Stíl Chicago (17ú heag.)Harvey, John. The Master Builders: Architecture in the Middle Ages. London: Thames and Hudson, 1971.
Lua MLA (9ú heag.)Harvey, John. The Master Builders: Architecture in the Middle Ages. Thames and Hudson, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.