APA (7th ed.) Zitazioa
Norris, P. (2008). Spies in the Sky: Surveillance Satellites in War and Peace. Praxis. https://doi.org/10.1007/978-0-387-71673-2
Chicago Style (17th ed.) Zitazioa
Norris, Pat. Spies in the Sky: Surveillance Satellites in War and Peace. New York, NY: Praxis, 2008. https://doi.org/10.1007/978-0-387-71673-2.
MLA (9th ed.) Zitazioa
Norris, Pat. Spies in the Sky: Surveillance Satellites in War and Peace. Praxis, 2008. https://doi.org/10.1007/978-0-387-71673-2.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.