APA

Plus R., . (1940). Mary in our soul life. New York: Pustet.

Chicago

Plus Raoul, . 1940. Mary in our soul life. New York: Pustet.

Harvard

Plus R., . (1940). Mary in our soul life. New York: Pustet.

MLA

Plus Raoul, . Mary in our soul life. New York: Pustet. 1940.