Williams, W. (1971). Social Policy Research and Analysis: The Experience in the Federal Social Agencies. American Elsevier.
استشهاد بنمط شيكاغوWilliams, Walter. Social Policy Research and Analysis: The Experience in the Federal Social Agencies. New York: American Elsevier, 1971.
MLA استشهادWilliams, Walter. Social Policy Research and Analysis: The Experience in the Federal Social Agencies. American Elsevier, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.