Ramsay, G. D. (1957). English overseas trade during the centuries of emergence; studies in some modern origins of the English-speaking world. Macmillan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramsay, George Daniel. English Overseas Trade During the Centuries of Emergence; Studies in Some Modern Origins of the English-speaking World. London: Macmillan, 1957.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ramsay, George Daniel. English Overseas Trade During the Centuries of Emergence; Studies in Some Modern Origins of the English-speaking World. Macmillan, 1957.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.