Παραπομπή σε μορφή APA (7η εκδ.)

Henderson, V. (2000). The effects of urban concentration on economic growth. National Bureau of Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Henderson, Vernon. The Effects of Urban Concentration on Economic Growth. Cambridge: National Bureau of Economic Research, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Henderson, Vernon. The Effects of Urban Concentration on Economic Growth. National Bureau of Economic Research, 2000.