APA aipamena

MERRIAM-WEBSTER PUB. (1996). MERRIAM-WEBSTER`S GUIDE TO BUSINESS CORRESPONDENCE (2ND.). MERRIAM-WEBSTER.

Chicago Style aipamena

MERRIAM-WEBSTER PUB. MERRIAM-WEBSTER`S GUIDE TO BUSINESS CORRESPONDENCE. 2ND. MASSACHUSETTS: MERRIAM-WEBSTER, 1996.

MLA aipamena

MERRIAM-WEBSTER PUB. MERRIAM-WEBSTER`S GUIDE TO BUSINESS CORRESPONDENCE. 2ND. MERRIAM-WEBSTER, 1996.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.