zgap AncestryPlus
zosr ArticleFirst
zebk Britannica Elementary
zlpd The Cornelius C. Platter Civil War Diary, 1864 - 1865
gaph Georgia Aerial Photographs
znah Georgia Department of Archives & History
zlgl Georgia Legislative Documents
gejl Georgia Libraries Journal List (GOLD)
zbmp MasterFILE Premier
zopf PsycFIRST (a subset of PsycINFO)