Sanderson, R. W. (1961). Our urban frontier: The 1961 opportunity and responsibility of Massachusetts Congregationalism. Congregational Board of Missions.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sanderson, Ross Warren. Our Urban Frontier: The 1961 Opportunity and Responsibility of Massachusetts Congregationalism. New York: Congregational Board of Missions, 1961.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sanderson, Ross Warren. Our Urban Frontier: The 1961 Opportunity and Responsibility of Massachusetts Congregationalism. Congregational Board of Missions, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.