APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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