APA (7th ed.) Zitazioa
Butler, D. K. (2005). Near-surface geophysics. Society of Exploration Geophysicists.
Chicago Style (17th ed.) Zitazioa
Butler, Dwain K. Near-surface Geophysics. Tulsa, Oklahoma: Society of Exploration Geophysicists, 2005.
MLA (9th ed.) Zitazioa
Butler, Dwain K. Near-surface Geophysics. Society of Exploration Geophysicists, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.