Kahn, A. J. (1979). Social policy and social services. New York: Random House.
Trích dẫn kiểu ChicagoKahn, Alfred J. Social Policy and Social Services. New York: Random House, 1979.
MLA引文Kahn, Alfred J. Social Policy and Social Services. New York: Random House, 1979.
警告：這些引文格式不一定是100％准確.