APA (7th ed.) Citation

Johnston, R. J., & Gregory, D. (1981). Dictionary of human geography (1st American ed.). Free Press.

Chicago Style (17th ed.) Citation

Johnston, R. J., and Derek Gregory. Dictionary of Human Geography. 1st American ed. New York, N.Y.: Free Press, 1981.

MLA (9th ed.) Citation

Johnston, R. J., and Derek Gregory. Dictionary of Human Geography. 1st American ed. Free Press, 1981.