Παραπομπή σε μορφή APA (7η εκδ.)

Nielsen, L., & Nielsen, L. (2017). Nature's Allies: Eight Conservationists Who Changed Our World (1st ed. 2017.). Island Press/Center for Resource Economics : Imprint: Island Press. https://doi.org/10.5822/978-1-61091-797-1

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nielsen, Larry, και Larry Nielsen. Nature's Allies: Eight Conservationists Who Changed Our World. 1st ed. 2017. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2017. https://doi.org/10.5822/978-1-61091-797-1.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nielsen, Larry, και Larry Nielsen. Nature's Allies: Eight Conservationists Who Changed Our World. 1st ed. 2017. Island Press/Center for Resource Economics : Imprint: Island Press, 2017. https://doi.org/10.5822/978-1-61091-797-1.