Calkins, T. (2012). Breakthrough Marketing Plans (2nd.). Palgrave Macmillan.
芝加哥风格引文Calkins, Tim. Breakthrough Marketing Plans. 2nd. New York: Palgrave Macmillan, 2012.
MLA引文Calkins, Tim. Breakthrough Marketing Plans. 2nd. Palgrave Macmillan, 2012.
警告：这些引文格式不一定是100％准确.