Singh,Avtar. (2011). Law of Sale of Goods (7th.). Eastern Book Company.
芝加哥风格引文Singh,Avtar. Law of Sale of Goods. 7th. Lucknow: Eastern Book Company, 2011.
MLA引文Singh,Avtar. Law of Sale of Goods. 7th. Eastern Book Company, 2011.
警告：这些引文格式不一定是100％准确.