Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Sommer, V., & Ross, C. (2011). Primates of Gashaka: Socioecology and Conservation in Nigeria’s Biodiversity Hotspot. Springer New York.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Volker Sommer, και Caroline Ross. Primates of Gashaka: Socioecology and Conservation in Nigeria’s Biodiversity Hotspot. New York, NY: Springer New York, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Primates of Gashaka: Socioecology and Conservation in Nigeria’s Biodiversity Hotspot. Springer New York, 2011.