APA (7th ed.) Zitazioa
Harris, P. R. (2009). Space Enterprise: Living and Working Offworld in the 21st Century. Praxis. https://doi.org/10.1007/978-0-387-77640-8
Chicago Style (17th ed.) Zitazioa
Harris, Philip Robert. Space Enterprise: Living and Working Offworld in the 21st Century. New York, NY: Praxis, 2009. https://doi.org/10.1007/978-0-387-77640-8.
MLA (9th ed.) Zitazioa
Harris, Philip Robert. Space Enterprise: Living and Working Offworld in the 21st Century. Praxis, 2009. https://doi.org/10.1007/978-0-387-77640-8.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.