Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Simpson, R., & Zimmermann, M. (2013). The Economy of Green Cities: A World Compendium on the Green Urban Economy. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Richard Simpson, και Monika Zimmermann. The Economy of Green Cities: A World Compendium on the Green Urban Economy. Dordrecht: Springer Netherlands : Imprint: Springer, 2013.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. The Economy of Green Cities: A World Compendium on the Green Urban Economy. Springer Netherlands : Imprint: Springer, 2013.