KOPLAR, R. (1993). Architectural Studies A Step-by-step Guide To Rendering And Drawing Techniques Richard Koplar. McGraw-Hill.
Chicago-viite (17. p.)KOPLAR, Richard. Architectural Studies A Step-by-step Guide To Rendering And Drawing Techniques Richard Koplar. McGraw-Hill, 1993.
MLA-viite (8. p.)KOPLAR, Richard. Architectural Studies A Step-by-step Guide To Rendering And Drawing Techniques Richard Koplar. McGraw-Hill, 1993.
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