Electronic Resource http://catalogo.sgc.gov.co/cgi-bin/koha/opac-shelves.pl?rss=1&viewshelf=64 RSS feed for public list Electronic Resource An appraisal of fuller´s earch resources in England and wales. Technical report WA/91/75. Onshore Geology Series / http://catalogo.sgc.gov.co/cgi-bin/koha/opac-detail.pl?biblionumber=46701 CHANGING CONCEPTS, APPROACHES AND TECHNIQUES IN MINERAL EXPLORATION / by Rostad, Ora H. http://catalogo.sgc.gov.co/cgi-bin/koha/opac-detail.pl?biblionumber=52704