Harnack, Adolf von, 1851-1930. What is Christianity? Translated by Thomas Bailey Saunders. Introd. by Rudolf Bultmann. - [1st Harper torchbook ed.] - New York, Harper [1957] - 301 p. 21 cm. - The Library of religion and culture Harper torchbooks, TB17 . Translation of Das Wesen des Christentums. LCCN: 57007534 Subjects--Topical Terms: Christianity--Essence, genius, nature. LC Class. No.: BT60 / .H3713 Dewey Class. No.: 230