APA (7th ed.) Citation

Hoover, E. M. (1971). An introduction to regional economics. Alfred A. Knoff.

Chicago Style (17th ed.) Citation

Hoover, Edgar M. An Introduction to Regional Economics. New York: Alfred A. Knoff, 1971.

MLA (9th ed.) Citation

Hoover, Edgar M. An Introduction to Regional Economics. Alfred A. Knoff, 1971.