APA (7th ed.) Citation

Reed, F. R. C. (1921). The geology of the British Empire. E. Arnold.

Chicago Style (17th ed.) Citation

Reed, F. R. C. The Geology of the British Empire. London: E. Arnold, 1921.

MLA (8th ed.) Citation

Reed, F. R. C. The Geology of the British Empire. E. Arnold, 1921.