APA aipamena

Ann, P. (1998). McGraw Hill handbook of more business letter. McGraw Hill.

Chicago Style aipamena

Ann, Poe. McGraw Hill Handbook of More Business Letter. McGraw Hill, 1998.

MLA aipamena

Ann, Poe. McGraw Hill Handbook of More Business Letter. McGraw Hill, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.