Butt, M. A., & Butt, M. S. (1964). The Law of sales tax (III of 1951) as modified up to the 31st December, 1963: Being an exhaustive commentary on the Sales tax act, 1951, covering up-to-date case-law, rules, and notifications (2nd ed.). Qausi Kutub Khana.
Chicago Style (17th ed.) CitationButt, Muhammad Amin, and Muhammad Saeed Butt. The Law of Sales Tax (III of 1951) as Modified Up to the 31st December, 1963: Being an Exhaustive Commentary on the Sales Tax Act, 1951, Covering Up-to-date Case-law, Rules, and Notifications. 2nd ed. Lahore: Qausi Kutub Khana, 1964.
MLA (9th ed.) CitationButt, Muhammad Amin, and Muhammad Saeed Butt. The Law of Sales Tax (III of 1951) as Modified Up to the 31st December, 1963: Being an Exhaustive Commentary on the Sales Tax Act, 1951, Covering Up-to-date Case-law, Rules, and Notifications. 2nd ed. Qausi Kutub Khana, 1964.