HEPLER, D. E. (1971). Architecture: Drafting and design. McGraw Hill International Book Company.
Chicago-referens (17:e uppl.)HEPLER, Donald E. Architecture: Drafting and Design. McGraw Hill International Book Company, 1971.
MLA-referens (8:e uppl.)HEPLER, Donald E. Architecture: Drafting and Design. McGraw Hill International Book Company, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.