APA (7th ed.) Citation
Bernal, J. D. (1969). Science in history. Penguin Books.
Chicago Style (17th ed.) Citation
Bernal, John Desmond. Science in History. Harmondsworth [U.K.]: Penguin Books, 1969.
MLA (9th ed.) Citation
Bernal, John Desmond. Science in History. Penguin Books, 1969.
Warning: These citations may not always be 100% accurate.