APA (7th ed.) Zitazioa
Tillery, B. W. (1993). Physical science (2nd ed.). Wm. C. Brown.
Chicago Style (17th ed.) Zitazioa
Tillery, Bill W. Physical Science. 2nd ed. Dubuque, Iowa: Wm. C. Brown, 1993.
MLA (9th ed.) Zitazioa
Tillery, Bill W. Physical Science. 2nd ed. Wm. C. Brown, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.