APA (7th ed.) Citation

Keltie, J. S. S., & Howarth, O. (1913). History of geography. Watts.

Chicago Style (17th ed.) Citation

Keltie, John Scott Sir, and O.J.R Howarth. History of Geography. London: Watts, 1913.

MLA (9th ed.) Citation

Keltie, John Scott Sir, and O.J.R Howarth. History of Geography. Watts, 1913.