APA استشهاد

Singh, A. (2011). Law of Sale of Goods (7th.). Eastern Book Company.

استشهاد بنمط شيكاغو

Singh, Avtar. Law of Sale of Goods. 7th. Lucknow: Eastern Book Company, 2011.

MLA استشهاد

Singh, Avtar. Law of Sale of Goods. 7th. Eastern Book Company, 2011.