Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Leemans, R. (2013). Ecological Systems: Selected Entries from the Encyclopedia of Sustainability Science and Technology. Springer New York : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Rik Leemans. Ecological Systems: Selected Entries from the Encyclopedia of Sustainability Science and Technology. New York, NY: Springer New York : Imprint: Springer, 2013.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Rik Leemans. Ecological Systems: Selected Entries from the Encyclopedia of Sustainability Science and Technology. Springer New York : Imprint: Springer, 2013.