Hogben, L. (1963). Essential world English. New York: W.W. Norton & Company.
Chicago Style aipamenaHogben, Lancelot. Essential World English. New York: W.W. Norton & Company, 1963.
MLA aipamenaHogben, Lancelot. Essential World English. New York: W.W. Norton & Company, 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.