Developments in solid earth geophysics volume 15: Proceedings of the Seventeenth Assembly of the European Seismological Commission Budapest, 24–29 August 1980. E. Bisztricsany and Gy. Szeidovitz (Editors). Elsevier Scientific Publishing Company, Amsterdam-Oxford-New York, 1983, XVIII + 689 pages, ISBN 0-444-99662-1.☆