Rivera Sheila. (2007). Pull Ahead Biographies Books Alexander Graha. Lerner.
芝加哥风格引文Rivera Sheila. Pull Ahead Biographies Books Alexander Graha. UK: Lerner, 2007.
MLA引文Rivera Sheila. Pull Ahead Biographies Books Alexander Graha. Lerner, 2007.
警告：这些引文格式不一定是100％准确.