Não informado. (1954). Building maintenance and modernization. Trade Press.
Chicago-referens (17:e uppl.)Não informado. Building Maintenance and Modernization. Milwaukee, Wis: Trade Press, 1954.
MLA-referens (8:e uppl.)Não informado. Building Maintenance and Modernization. Trade Press, 1954.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.