Rüfli, E. (1982). Heterogenity is Beautiful. Werk, Bauen + Wohnen.
Cita Chicago (17th ed.)Rüfli, Eduard. "Heterogenity Is Beautiful." Werk, Bauen + Wohnen 1982.
Cita MLA (8th ed.)Rüfli, Eduard. "Heterogenity Is Beautiful." Werk, Bauen + Wohnen, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.