HEPLER, D. E. (1991). Architecture Drafting And Design Donald E. Hepler, Paul R. Wallach And Dana J. Hepler. McGraw-Hill.
Chicago-viite (17. p.)HEPLER, Donald E. Architecture Drafting And Design Donald E. Hepler, Paul R. Wallach And Dana J. Hepler. McGraw-Hill, 1991.
MLA-viite (8. p.)HEPLER, Donald E. Architecture Drafting And Design Donald E. Hepler, Paul R. Wallach And Dana J. Hepler. McGraw-Hill, 1991.
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