APA (7. basım) Alıntı

Devas, C. S. (1906). The key to the world's progress, being an essay on historical logic. Longmans, Green and Co..

Chicago Style (17. basım) Atıf

Devas, Charles Stanton. The Key to the World's Progress, Being an Essay on Historical Logic. London: Longmans, Green and Co., 1906.

MLA (8th ed.) Atıf

Devas, Charles Stanton. The Key to the World's Progress, Being an Essay on Historical Logic. Longmans, Green and Co., 1906.