APA

Pupin M. I., . (1927). The new reformation: from physical to spiritual realities. New York: C. Scribner's Sons.

Chicago

Pupin Michael Idvorsky, . 1927. The new reformation: from physical to spiritual realities. New York: C. Scribner's Sons.

Harvard

Pupin M. I., . (1927). The new reformation: from physical to spiritual realities. New York: C. Scribner's Sons.

MLA

Pupin Michael Idvorsky, . The new reformation: from physical to spiritual realities. New York: C. Scribner's Sons. 1927.