APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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