Owen, R. D. (1848). Labor: Its history and prospects : an address delivered before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Owen, Robert Dale. Labor: Its History and Prospects : An Address Delivered Before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh., 1848.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Owen, Robert Dale. Labor: Its History and Prospects : An Address Delivered Before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh., 1848.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.