1. Boletín de geología Publication/Creation: Bucaramanga, Colombia : Universidad Industrial de Santander, Facultad de Petróleos, Depto. de Geolgía, 1958- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
2. Boletín de geología Publication/Creation: Bucaramanga, Colombia, S.a. : [publisher not identified]. Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
3. Boletín geológico Publication/Creation: Bogotá, Colombia : Servicio Geológico Nacional Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
4. Boletín geológico Publication/Creation: Bogotá, Colombia : Servicio Geológico Nacional, [1953]- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading