APA (7th ed.) Citation

Hepworth, M. E. (1990). Geography of the information economy. Guilford.

Chicago Style (17th ed.) Citation

Hepworth, Mark E. Geography of the Information Economy. New York: Guilford, 1990.

MLA (9th ed.) Citation

Hepworth, Mark E. Geography of the Information Economy. Guilford, 1990.