Smith, M. Eyewitness living earth (1a ed.).
芝加哥风格引文Smith, Miranda. Eyewitness Living Earth. 1a ed.
MLA引文Smith, Miranda. Eyewitness Living Earth. 1a ed.
警告：这些引文格式不一定是100％准确.
APA引文
Smith, M. Eyewitness living earth (1a ed.).
芝加哥风格引文Smith, Miranda. Eyewitness Living Earth. 1a ed.
MLA引文Smith, Miranda. Eyewitness Living Earth. 1a ed.