Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Wuerthner, G., Crist, E., & Butler, T. (2015). Protecting the Wild: Parks and Wilderness, the Foundation for Conservation. Island Press/Center for Resource Economics : Imprint: Island Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), George Wuerthner, Eileen Crist, και Tom Butler. Protecting the Wild: Parks and Wilderness, the Foundation for Conservation. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Protecting the Wild: Parks and Wilderness, the Foundation for Conservation. Island Press/Center for Resource Economics : Imprint: Island Press, 2015.