Laidler, H. W. (1924). Roads to freedom; a syllabus for discussion groups. League for Industrial Democracy.
芝加哥风格引文Laidler, Harry Wellington. Roads to Freedom; a Syllabus for Discussion Groups. New York City: League for Industrial Democracy, 1924.
MLA引文Laidler, Harry Wellington. Roads to Freedom; a Syllabus for Discussion Groups. League for Industrial Democracy, 1924.
警告：这些引文格式不一定是100％准确.