APA
Ruskin J., . (1919). Crown of wild olive and the queen of the air. New York: The Macmillan Company.
Chicago
Ruskin John, . 1919. Crown of wild olive and the queen of the air. New York: The Macmillan Company.
Harvard
Ruskin J., . (1919). Crown of wild olive and the queen of the air. New York: The Macmillan Company.
MLA
Ruskin John, . Crown of wild olive and the queen of the air. New York: The Macmillan Company. 1919.