APA (7th ed.) Zitazioa
Winter, R. D. (1970). The twenty ubeliverble years 1945 to 1969. William carey library.
Chicago Style (17th ed.) Zitazioa
Winter, Ralph D. The Twenty Ubeliverble Years 1945 to 1969. California: William carey library, 1970.
MLA (9th ed.) Zitazioa
Winter, Ralph D. The Twenty Ubeliverble Years 1945 to 1969. William carey library, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.