Manning, G., & Curtis, K. (1988). Leadership: Nine keys to success. Vista Systems.
芝加哥风格引文Manning, George, 与 Kent Curtis. Leadership: Nine Keys to Success. Cincinnati, Ohio: Vista Systems, 1988.
MLA引文Manning, George, 与 Kent Curtis. Leadership: Nine Keys to Success. Vista Systems, 1988.
警告：这些引文格式不一定是100％准确.