Hans Dieter Schaal : Architekturen 1970-1990 = Architectures 1970-1990.
Schaal, Hans Dieter,1943-
Galerie der Stadt Stuttgart.
Stuttgart : G. Hatje,
c1990.
Catalogue of an exhibition held at the Galerie der Stadt Stuttgart, 14 February - 8 April 1990.
Text in English and German.
Bibliography: p. 185-187.
Schaal, Hans Dieter, 1943-