APA (7th ed.) Citation

Ross, S. W. D. (1939). Foundations of ethics: The Gifford lectures delivered in the University of Aberdeen 1935-6. Clarendon Press.

Chicago Style (17th ed.) Citation

Ross, Sir William David. Foundations of Ethics: The Gifford Lectures Delivered in the University of Aberdeen 1935-6. Oxford: Clarendon Press, 1939.

MLA (9th ed.) Citation

Ross, Sir William David. Foundations of Ethics: The Gifford Lectures Delivered in the University of Aberdeen 1935-6. Clarendon Press, 1939.