APA (7th ed.) Citation

Jenkins, S., Leigh, M., & Richards, S. (1987). Investigating geography. Unwin Hyman.

Chicago Style (17th ed.) Citation

Jenkins, Susanna, Moya Leigh, and Susan Richards. Investigating Geography. London: Unwin Hyman, 1987.

MLA (9th ed.) Citation

Jenkins, Susanna, et al. Investigating Geography. Unwin Hyman, 1987.