English language services. (1967). Special English: Journalism. New York: MacMillan.
Chicago Style aipamenaEnglish language services. Special English: Journalism. New York: MacMillan, 1967.
MLA aipamenaEnglish language services. Special English: Journalism. New York: MacMillan, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.