Gartside , L. (1992). Model business letters (ELBS) (4th.). Pitman.
Chicagoスタイル(17版)引用形式Gartside , L. Model Business Letters (ELBS). 4th. London: Pitman, 1992.
MLA(9版)引用形式Gartside , L. Model Business Letters (ELBS). 4th. Pitman, 1992.
警告: この引用は必ずしも正確ではありません.