Baugh , L. (1998). How to write first class letterts. Viva.
Chicagoスタイル(17版)引用形式Baugh , L. How to Write First Class Letterts. New Delhi: Viva, 1998.
MLA(9版)引用形式Baugh , L. How to Write First Class Letterts. Viva, 1998.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式