Παραπομπή APA

Williams, W. (1971). Social Policy Research and Analysis: The Experience in the Federal Social Agencies. American Elsevier.

Παραπομπή Chicago Style

Williams, Walter. Social Policy Research and Analysis: The Experience in the Federal Social Agencies. New York: American Elsevier, 1971.

Παραπομπή MLA

Williams, Walter. Social Policy Research and Analysis: The Experience in the Federal Social Agencies. American Elsevier, 1971.