APA aipamena

(1989). Operation of the trade agreements program. Washington: USITC Publication.

Chicago Style aipamena

Operation of the Trade Agreements Program. Washington: USITC Publication, 1989.

MLA aipamena

Operation of the Trade Agreements Program. Washington: USITC Publication, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.