Gartside. (1967). Modern Business Correspondence/2e (2nd ed.). ELBS.
Chicago Edition CitationGartside. Modern Business Correspondence/2e. 2nd ed. London: ELBS, 1967.
MLA引文Gartside. Modern Business Correspondence/2e. 2nd ed. ELBS, 1967.
警告:這些引文格式不一定是100%准確.