Cita APA (7th ed.)

Bish, R. L., & Kirk, R. J. (1974). Economic principles and urban problems. Prentice - hall.

Cita Chicago (17th ed.)

Bish, Robert L., i Robert J. Kirk. Economic Principles and Urban Problems. New Jersey: Prentice - hall, 1974.

Cita MLA (9th ed.)

Bish, Robert L., i Robert J. Kirk. Economic Principles and Urban Problems. Prentice - hall, 1974.