APA (7th ed.) Citation

Johnston, R. J. (1973). Spatial structures: Introducing the study of spatial systems in human geography. St. Martin's Press.

Chicago Style (17th ed.) Citation

Johnston, Ronald John. Spatial Structures: Introducing the Study of Spatial Systems in Human Geography. New York: St. Martin's Press, 1973.

MLA (9th ed.) Citation

Johnston, Ronald John. Spatial Structures: Introducing the Study of Spatial Systems in Human Geography. St. Martin's Press, 1973.