11th congress,Vienna =
Subtitle: 11e congres, Vienne = 11. Kongress, Wien, Aug 31-Sep 5, 1980 : introductory report.
Publisher: IABSE-AIPC-IVBH
Published: 1979
Place of publication: Zürich
Language: mul
Number of pages: 296
Notes: Text in English, German and French.