APA (7th ed.) Citation

Robertson, C. G. (1946). Chatham and the British Empire. Hodder & Stoughton for English Universities Press.

Chicago Style (17th ed.) Citation

Robertson, Charles Grant. Chatham and the British Empire. London: Hodder & Stoughton for English Universities Press, 1946.

MLA (8th ed.) Citation

Robertson, Charles Grant. Chatham and the British Empire. Hodder & Stoughton for English Universities Press, 1946.