HEPLER, D. E. (1991). Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill.
Čikaški stil citiranja (17. izdanje)HEPLER, Donald E. Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill, 1991.
MLA način citiranja (8. izdanje)HEPLER, Donald E. Architecture Drafting and Design / Donald E.Hepler, Paul I.Wallach and Dana J.Hepler. McGraw-Hill, 1991.
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