APA aipamena

Richards, J. C. Interchange. English for international communication. Intro Workbook.

Chicago Style aipamena

Richards, Jack C. Interchange. English for International Communication. Intro Workbook.

MLA aipamena

Richards, Jack C. Interchange. English for International Communication. Intro Workbook.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.