APA
Schweitzer A., . (1949). <The> Philosophy of civilization. New York: Macmillan Company.
Chicago
Schweitzer Albert, . 1949. <The> Philosophy of civilization. New York: Macmillan Company.
Harvard
Schweitzer A., . (1949). <The> Philosophy of civilization. New York: Macmillan Company.
MLA
Schweitzer Albert, . <The> Philosophy of civilization. New York: Macmillan Company. 1949.
