APA (7e ed.) Bronvermelding

Alexander, J. (1979). Economic grography (2nd.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Alexander, J. Economic Grography. 2nd. New Delhi: Prentice Hall, 1979.

MLA (9e ed.) Bronvermelding

Alexander, J. Economic Grography. 2nd. Prentice Hall, 1979.