SIEGENTHALER, J. (1995). Modern hydronic heating for residential and lightcommercial buildings. Delmar.
Lua i Stíl Chicago (17ú heag.)SIEGENTHALER, John. Modern Hydronic Heating for Residential and Lightcommercial Buildings. Bonn: Delmar, 1995.
Lua MLA (9ú heag.)SIEGENTHALER, John. Modern Hydronic Heating for Residential and Lightcommercial Buildings. Delmar, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.