APA (7th ed.) Citation

Watson, H. B. (1941). Modern theories of organic chemistry (2d ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Watson, H. B. Modern Theories of Organic Chemistry. 2d ed. London: Oxford University Press, 1941.

MLA (9th ed.) Citation

Watson, H. B. Modern Theories of Organic Chemistry. 2d ed. Oxford University Press, 1941.