APA (7th ed.) Zitazioa
Pelt, M. (2005). Space Tourism: Adventures in Earth Orbit and Beyond. Springer New York. https://doi.org/10.1007/b138414
Chicago Style (17th ed.) Zitazioa
Pelt, Michel. Space Tourism: Adventures in Earth Orbit and Beyond. New York, NY: Springer New York, 2005. https://doi.org/10.1007/b138414.
MLA (9th ed.) Zitazioa
Pelt, Michel. Space Tourism: Adventures in Earth Orbit and Beyond. Springer New York, 2005. https://doi.org/10.1007/b138414.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.