Ragodon, R. (1971). The emergence of middle class. Sunday Times Magazine.
芝加哥风格引文Ragodon, Radolfo. "The Emergence of Middle Class." Sunday Times Magazine 1971.
MLA引文Ragodon, Radolfo. "The Emergence of Middle Class." Sunday Times Magazine, 1971.
警告：这些引文格式不一定是100％准确.