SpringerLink (Online service), Sarasola, J. H., Grande, J. M., & Negro, J. J. (2018). Birds of Prey: Biology and conservation in the XXI century (1st ed. 2018.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-73745-4
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), José Hernán Sarasola, Juan Manuel Grande, και Juan José Negro. Birds of Prey: Biology and Conservation in the XXI Century. 1st ed. 2018. Cham: Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-73745-4.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Birds of Prey: Biology and Conservation in the XXI Century. 1st ed. 2018. Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-73745-4.
