APA (7th ed.) Zitazioa
Hill, J. W. (1992). Chemistry for changing times (6th ed.). Macmillan.
Chicago Style (17th ed.) Zitazioa
Hill, John W. Chemistry for Changing Times. 6th ed. New York: Macmillan, 1992.
MLA (9th ed.) Zitazioa
Hill, John W. Chemistry for Changing Times. 6th ed. Macmillan, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.