MasterFILE Complete This link opens in a new windowThis multidisciplinary database provides full text for more than 2,000 general reference publications with full text information dating as far back as 1922. It covers subject areas of general interest and contains full text for more than 1,000 reference books and over 164,400 primary source documents, as well as an image collection of over 502,000 photos, maps & flags.. Note: To limit your search to primary source documents, select "Primary Source Document" in the "Publication Type" box. Access provided by eLibraryMN (ELM).