APA (7th ed.) Citation

Porter, R. (2001). Enlightenment: Britain and the creation of the modern world. Penguin Books.

Chicago Style (17th ed.) Citation

Porter, Roy. Enlightenment: Britain and the Creation of the Modern World. London [u.a.]: Penguin Books, 2001.

MLA (9th ed.) Citation

Porter, Roy. Enlightenment: Britain and the Creation of the Modern World. Penguin Books, 2001.