Παραπομπή σε μορφή APA (7η εκδ.)

Von Eckardt, W., & Gottmann, J. M. (1964). The challenge of Megalopolis, a graphic presentation of the urbanized Northeastern Seaboard of the United States. MacMillan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Von Eckardt, Wolf, και Jean. Megapolis Gottmann. The Challenge of Megalopolis, a Graphic Presentation of the Urbanized Northeastern Seaboard of the United States. New Yorkn: MacMillan, 1964.

Παραπομπή σε μορφή MLA (9th εκδ.)

Von Eckardt, Wolf, και Jean. Megapolis Gottmann. The Challenge of Megalopolis, a Graphic Presentation of the Urbanized Northeastern Seaboard of the United States. MacMillan, 1964.