Conrads, U., & Bullock, M. (1971). Programmes and manifestoes on 20th-century architecture. Lund Humphries ; The MIT Press.

Conrads, Ulrich, and Michael Bullock. Programmes and Manifestoes on 20th-century Architecture. London : Cambridge, Mass.: Lund Humphries ; The MIT Press, 1971.

Conrads, Ulrich, and Michael Bullock. Programmes and Manifestoes on 20th-century Architecture. Lund Humphries ; The MIT Press, 1971.