APA (7th ed.) Citation

Johnston, R. J., & Johnston, R. (1986). A World in crisis?: Geographical perspectives. Blackwell.

Chicago Style (17th ed.) Citation

Johnston, Ronald John, and R.J.;Taylor Johnston. A World in Crisis?: Geographical Perspectives. Blackwell, 1986.

MLA (9th ed.) Citation

Johnston, Ronald John, and R.J.;Taylor Johnston. A World in Crisis?: Geographical Perspectives. Blackwell, 1986.

Warning: These citations may not always be 100% accurate.