APA (7th ed.) Citation

Young, E. W. (1973). The world, physical and human (3rd ed.). E. Arnold.

Chicago Style (17th ed.) Citation

Young, Eric William. The World, Physical and Human. 3rd ed. London: E. Arnold, 1973.

MLA (9th ed.) Citation

Young, Eric William. The World, Physical and Human. 3rd ed. E. Arnold, 1973.