RUTHERFORD, W. E. (1975). Modern english 1.-- Ed. 2. Harcourt Brace Jovanovich.
Chicago Style aipamenaRUTHERFORD, William E. Modern English 1.-- Ed. 2. New York: Harcourt Brace Jovanovich, 1975.
MLA aipamenaRUTHERFORD, William E. Modern English 1.-- Ed. 2. Harcourt Brace Jovanovich, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.