Delos Reyes, R. A. (1991). Watch your business English: A practical guidebook to over 800 concerns on correct usage in business correspondence. PROSEC.
Chicagoスタイル(17版)引用形式Delos Reyes, Rodolfo A. Watch Your Business English: A Practical Guidebook to over 800 Concerns on Correct Usage in Business Correspondence. Makati: PROSEC, 1991.
MLA(9版)引用形式Delos Reyes, Rodolfo A. Watch Your Business English: A Practical Guidebook to over 800 Concerns on Correct Usage in Business Correspondence. PROSEC, 1991.
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