Texas Reference Center Texas Reference Center, provides full text for general periodicals covering a broad range of disciplines including general reference, business, education, health, general science, multi-cultural issues and much more. This database features: full text Magill Book Reviews, full text reference books including the World Almanac & Book of Facts; biographies, primary source documents, American Heritage Dictionary, 4th Edition and an Image Collection of photos, maps and flags. Texas Reference Center offers PDF backfiles as far back as 1975 for key publications including American Libraries, Foreign Affairs, History Today, Judaism, Library Journal and National Review.