APA (7th ed.) Citation

Gregory, D., Johnston, R. J., & Smith, D. M. (1994). The dictionary of human geography (3rd ed.). Blackwell.

Chicago Style (17th ed.) Citation

Gregory, Derek, R. J. Johnston, and David M. Smith. The Dictionary of Human Geography. 3rd ed. Massachusetts: Blackwell, 1994.

MLA (8th ed.) Citation

Gregory, Derek, et al. The Dictionary of Human Geography. 3rd ed. Blackwell, 1994.