Luther -- Benzing (Josef): Lutherbibliographie, Baden-Baden, 1966, 8vo, modern cloth -- Kuczynski (Arnold): Thesaurus Libellorum Historiam Reformationis Illustrantium. Verzeichniss einer Sammlung von nahezu 3000 Flugschriften Luthers und seiner Zeitgenoffen, Leipzig, 1870, 2 vols., 8vo, later cloth -- Wolf (Gustav): Quellenkunde der Deutschen Reformationsgeschichte, Nieuwkoop, 1965, 3 vols. in 2, 8vo, photographic reprint of the Gotha 1915 edition, original cloth; and 7 others on Luther and his contemporaries. (12)