APA (7. basım) Alıntı

Gartside , L. (1992). Model business letters (ELBS) (4th.). Pitman.

Chicago Style (17. basım) Atıf

Gartside , L. Model Business Letters (ELBS). 4th. London: Pitman, 1992.

MLA (9th ed.) Atıf

Gartside , L. Model Business Letters (ELBS). 4th. Pitman, 1992.