Cita APA

Harnack, C. G. A. v., & Saunders, T. B. (1957). What is christianity? New York and Evaston: Harper Row.

Citación estilo Chicago

Harnack, Carl Gustav Adolf von, y Thomas Bailey Saunders. What Is Christianity? New York and Evaston: Harper Row, 1957.

Cita MLA

Harnack, Carl Gustav Adolf von, y Thomas Bailey Saunders. What Is Christianity? New York and Evaston: Harper Row, 1957.