Fry, R., & Hume, G. B. (1967). Manual of Commercial Correspondence. Issac Pitman.
シカゴスタイル引用形Fry, Roland, , G Bayley Hume. Manual of Commercial Correspondence. London: Issac Pitman, 1967.
MLA引用形式Fry, Roland, , G Bayley Hume. Manual of Commercial Correspondence. Issac Pitman, 1967.
警告: この引用は必ずしも正確ではありません.