SpringerLink (Online service), Leuprecht, C., Sokolsky, J. J., & Hughes, T. (2018). North American Strategic Defense in the 21st Century: Security and Sovereignty in an Uncertain World (1st ed. 2018.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-90978-3
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Christian Leuprecht, Joel J. Sokolsky, και Thomas Hughes. North American Strategic Defense in the 21st Century: Security and Sovereignty in an Uncertain World. 1st ed. 2018. Cham: Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-90978-3.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. North American Strategic Defense in the 21st Century: Security and Sovereignty in an Uncertain World. 1st ed. 2018. Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-90978-3.
