APA aipamena

Elliot, A. (1992). Universal letter writer. Clarion.

Chicago Style aipamena

Elliot, Andrew. Universal Letter Writer. Surrey: Clarion, 1992.

MLA aipamena

Elliot, Andrew. Universal Letter Writer. Clarion, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.