APA (7th ed.) Zitazioa
Cronkite, D. [. (2007). Prentice Hall Science Explorer: Oklahoma Grade 6. Pearson Prentice Hall.
Chicago Style (17th ed.) Zitazioa
Cronkite, Donald [et-al]. Prentice Hall Science Explorer: Oklahoma Grade 6. Massachusetts: Pearson Prentice Hall, 2007.
MLA (9th ed.) Zitazioa
Cronkite, Donald [et-al]. Prentice Hall Science Explorer: Oklahoma Grade 6. Pearson Prentice Hall, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.