Kaul, A. Effective Business Communication. Prentice Hall of India (Pvt. Ltd.).
芝加哥风格引文Kaul, Asha. Effective Business Communication. New Delhi New Delhi: Prentice Hall of India (Pvt. Ltd.).
MLA引文Kaul, Asha. Effective Business Communication. Prentice Hall of India (Pvt. Ltd.).
警告：这些引文格式不一定是100％准确.