Ashley, A. (2010). Oxford hanhdbook of commercial correspondence. Oxford: Oxford University press.
Trích dẫn kiểu ChicagoAshley, A. Oxford Hanhdbook of Commercial Correspondence. Oxford: Oxford University press, 2010.
MLA引文Ashley, A. Oxford Hanhdbook of Commercial Correspondence. Oxford: Oxford University press, 2010.
警告：這些引文格式不一定是100％准確.