378624 Lougheed, L. (2011). Barron's IELTS: International English language testing system. Hauppauge, NY : New Age International.
芝加哥风格引文378624 Lougheed, Lin. Barron's IELTS: International English Language Testing System. Hauppauge, NY : New Age International, 2011.
MLA引文378624 Lougheed, Lin. Barron's IELTS: International English Language Testing System. Hauppauge, NY : New Age International, 2011.
警告：这些引文格式不一定是100％准确.