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I Tanger, Ljudbok
 I Tanger, Ljudbok
Pearson, Karl 1857-1936 Biometrika; v.12 (1918-1919)
 Pearson, Karl 1857-1936 Biometrika; v.12 (1918-1919)
Elizabeth, Wycoff Minnie Ripley County's Part in the World war, 1917-1918
 Elizabeth, Wycoff Minnie Ripley County's Part in the World war, 1917-1918
Hitchcock, Ripley 1857-1918 Etching in America: With Lists of American Etchers and Notable Collections of Prints
 Hitchcock, Ripley 1857-1918 Etching in America: With Lists of American Etchers and Notable Collections of Prints
Kobbé, Gustav 1857-1918 Wagner's Life and Works; 1
 Kobbé, Gustav 1857-1918 Wagner's Life and Works; 1
#587-#778; #1316A-#1448 A. A. S. Hitchcock: British Guiana, 1919-1920, Washington, D.C., Including SI and Rock Creek Park; Cuba; Colorado and Wyoming, 1918
 #587-#778; #1316A-#1448 A. A. S. Hitchcock: British Guiana, 1919-1920, Washington, D.C., Including SI and Rock Creek Park; Cuba; Colorado and Wyoming, 1918
Hitchcock, Ripley 1857-1918