SpringerLink (Online service) & Schmidt, N. (2019). Planetary Defense: Global Collaboration for Defending Earth from Asteroids and Comets (1st ed. 2019.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-030-01000-3
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service) και Nikola Schmidt. Planetary Defense: Global Collaboration for Defending Earth from Asteroids and Comets. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-030-01000-3.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service) και Nikola Schmidt. Planetary Defense: Global Collaboration for Defending Earth from Asteroids and Comets. 1st ed. 2019. Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-030-01000-3.
