APA (7th ed.) Citation

Hoover, E. M. (1971). An introduction to regional economics. Knopf.

Chicago Style (17th ed.) Citation

Hoover, Edgar Malone. An Introduction to Regional Economics. New York: Knopf, 1971.

MLA (8th ed.) Citation

Hoover, Edgar Malone. An Introduction to Regional Economics. Knopf, 1971.

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