APA (7th ed.) Zitazioa
(1982). Science year :1983: The World book science annual. Field Enterprises Educational Corporation.
Chicago Style (17th ed.) Zitazioa
Science Year :1983: The World Book Science Annual. Chicago: Field Enterprises Educational Corporation, 1982.
MLA (9th ed.) Zitazioa
Science Year :1983: The World Book Science Annual. Field Enterprises Educational Corporation, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.