APA (7th ed.) Citation

Johnston, R. J., Gregory, D., & Smith, D. M. (1986). The dictionary of human geography (2nd ed.). Blackwell Reference.

Chicago Style (17th ed.) Citation

Johnston, Ronald John, Derek Gregory, and David M. Smith. The Dictionary of Human Geography. 2nd ed. Oxford: Blackwell Reference, 1986.

MLA (9th ed.) Citation

Johnston, Ronald John, et al. The Dictionary of Human Geography. 2nd ed. Blackwell Reference, 1986.