Ewing, D. W. Writing for results in business, government and the professions.
استشهاد بنمط شيكاغوEwing, David W. Writing for Results in Business, Government and the Professions.
MLA استشهادEwing, David W. Writing for Results in Business, Government and the Professions.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.