APA (7e ed.) Bronvermelding

Thompson, A. E. (1979). Understanding futurology: An introduction to futures study. David and Charles.

Chicago (17e ed.) Bronvermelding

Thompson, Alan E. Understanding Futurology: An Introduction to Futures Study. London: David and Charles, 1979.

MLA (9e ed.) Bronvermelding

Thompson, Alan E. Understanding Futurology: An Introduction to Futures Study. David and Charles, 1979.