APA (7th ed.) Citation

Lucas, C. P. (1915). The British empire: Six lectures. Macmillan and co., limited.

Chicago Style (17th ed.) Citation

Lucas, Charles Prestwood. The British Empire: Six Lectures. London: Macmillan and co., limited, 1915.

MLA (9th ed.) Citation

Lucas, Charles Prestwood. The British Empire: Six Lectures. Macmillan and co., limited, 1915.