Landis, B. Y. (1949). Rural welfare services. Columbia Univ. Press.
芝加哥风格引文Landis, Benson Young. Rural Welfare Services. New York: Columbia Univ. Press, 1949.
MLA引文Landis, Benson Young. Rural Welfare Services. Columbia Univ. Press, 1949.
警告：这些引文格式不一定是100％准确.