Information sources

Abstract

The sources of information are instruments for knowledge, access and search of information, its main objective is to search, fix and disseminate the source of information implicit in any physical support, these can be catalogued from different perspectives, however, each Author can elaborate his own classification depending on his degree of information. According to the degree of information they provide, the sources of information are divided into primary, secondary and tertiary; This division is generally used in the academic field.