Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Hawksworth, D. L., & Bull, A. T. (2007). Vertebrate Conservation and Biodiversity. Springer Netherlands.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), David L. Hawksworth, και Alan T. Bull. Vertebrate Conservation and Biodiversity. Dordrecht: Springer Netherlands, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Vertebrate Conservation and Biodiversity. Springer Netherlands, 2007.