Delbeke. Proportional Systems in the History of Architecture. Leiden University Press.
Cita Chicago (17th ed.)Delbeke. Proportional Systems in the History of Architecture. Leiden University Press.
Cita MLA (9th ed.)Delbeke. Proportional Systems in the History of Architecture. Leiden University Press.
Atenció: Aquestes cites poden no estar 100% correctes.