James, C. (1980). Contrastive analysis. Harlow, Essex: Longman.
Chicago Style aipamenaJames, Carl. Contrastive Analysis. Harlow, Essex: Longman, 1980.
MLA aipamenaJames, Carl. Contrastive Analysis. Harlow, Essex: Longman, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.