APA
Schweitzer A., . (1959). The light within us. New York: Philosophical Library.
Chicago
Schweitzer Albert, . 1959. The light within us. New York: Philosophical Library.
Harvard
Schweitzer A., . (1959). The light within us. New York: Philosophical Library.
MLA
Schweitzer Albert, . The light within us. New York: Philosophical Library. 1959.
