SHREE BOOK SENTRE. (2009). A BIOGRAPHY - CHARLES DARWIN. SHREE BOOK CENTRE.
芝加哥风格引文SHREE BOOK SENTRE. A BIOGRAPHY - CHARLES DARWIN. SHREE BOOK CENTRE, 2009.
MLA引文SHREE BOOK SENTRE. A BIOGRAPHY - CHARLES DARWIN. SHREE BOOK CENTRE, 2009.
警告：这些引文格式不一定是100％准确.