Harmer, J. (1993). Teaching anh learning grammar. England: Longman.
Chicago Style aipamenaHarmer, Jeremy. Teaching Anh Learning Grammar. England: Longman, 1993.
MLA aipamenaHarmer, Jeremy. Teaching Anh Learning Grammar. England: Longman, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.