Não informado. (1971). Architect. IPC Building and Contract Journals.
Chicago-referens (17:e uppl.)Não informado. Architect. London: IPC Building and Contract Journals, 1971.
MLA-referens (8:e uppl.)Não informado. Architect. IPC Building and Contract Journals, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.