HEPLER, D. E. (1991). Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)HEPLER, Donald E. Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill, 1991.
Lua MLA (8ú heag.)HEPLER, Donald E. Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.