GK ACE -4. PEARSON PUB.
芝加哥风格引文GK ACE -4. NEW DELHI: PEARSON PUB.
MLA引文GK ACE -4. PEARSON PUB.
警告：这些引文格式不一定是100％准确.
APA引文
GK ACE -4. PEARSON PUB.
芝加哥风格引文GK ACE -4. NEW DELHI: PEARSON PUB.
MLA引文GK ACE -4. PEARSON PUB.