Cita APA (7th ed.)

Hoover, E. M. (1975). An introduction to regional economics. Alfred A. Knoff.

Cita Chicago (17th ed.)

Hoover, Edgar M. An Introduction to Regional Economics. New York: Alfred A. Knoff, 1975.

Cita MLA (9th ed.)

Hoover, Edgar M. An Introduction to Regional Economics. Alfred A. Knoff, 1975.