APA
Balthasar H. U. v., . (1961). Prayer. New York: Paulist Press.
Chicago
Balthasar Hans Urs von, . 1961. Prayer. New York: Paulist Press.
Harvard
Balthasar H. U. v., . (1961). Prayer. New York: Paulist Press.
MLA
Balthasar Hans Urs von, . Prayer. New York: Paulist Press. 1961.
