Khan, O. S. (2004). Timeless leadership for corporate success. Omar & Khan.
芝加哥风格引文Khan, Omar S. Timeless Leadership for Corporate Success. Singapore: Omar & Khan, 2004.
MLA引文Khan, Omar S. Timeless Leadership for Corporate Success. Omar & Khan, 2004.
警告：这些引文格式不一定是100％准确.