NZ Geomechanics News NZ Geomechanics News NZGS Published 06/01/1980 Downloads 20_Jun1980_NZGeoNews-3.pdf Published 06/01/1980 Collection NZ Geomechanics News Compilation NZ Geomechanics News>Issue 20 - June 1980 Issue 18 Location New Zealand Type Magazine (full) ISSN 0111-6851
