Não informado. (1926). Buildings. Engineering and Contracting Publishing.
Chicago-referens (17:e uppl.)Não informado. Buildings. New York: Engineering and Contracting Publishing, 1926.
MLA-referens (8:e uppl.)Não informado. Buildings. Engineering and Contracting Publishing, 1926.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.