APA

Speer R. E., . (1902). Missionary principles and practice : a discussion of Christian missions and of some criticisms upon them. New York: Chicago [etc.].

Chicago

Speer Robert E, . 1902. Missionary principles and practice : a discussion of Christian missions and of some criticisms upon them. New York: Chicago [etc.].

Harvard

Speer R. E., . (1902). Missionary principles and practice : a discussion of Christian missions and of some criticisms upon them. New York: Chicago [etc.].

MLA

Speer Robert E, . Missionary principles and practice : a discussion of Christian missions and of some criticisms upon them. New York: Chicago [etc.]. 1902.