APA (7th ed.) Zitazioa

Christian, C. M. (1982). Modern metropolitan systems: Ed. by. Charles E.Merrill.

Chicago Style (17th ed.) Zitazioa

Christian, Charles M. Modern Metropolitan Systems: Ed. by. Columbus, Ohio: Charles E.Merrill, 1982.

MLA (9th ed.) Zitazioa

Christian, Charles M. Modern Metropolitan Systems: Ed. by. Charles E.Merrill, 1982.