Ferriss, A. L. (1969). Indicators of trends in American education. Russell Sage Foundation.
芝加哥风格引文Ferriss, Abbott L. Indicators of Trends in American Education. New York: Russell Sage Foundation, 1969.
MLA引文Ferriss, Abbott L. Indicators of Trends in American Education. Russell Sage Foundation, 1969.
警告：这些引文格式不一定是100％准确.