APA (7th ed.) Citation

Cloke, P. J., Philo, C., & Sadler, D. (1991). Approaching human geography: An introduction to contemporary theoretical debates. Guilford Press.

Chicago Style (17th ed.) Citation

Cloke, Paul J., Chris Philo, and David Sadler. Approaching Human Geography: An Introduction to Contemporary Theoretical Debates. New York: Guilford Press, 1991.

MLA (9th ed.) Citation

Cloke, Paul J., et al. Approaching Human Geography: An Introduction to Contemporary Theoretical Debates. Guilford Press, 1991.