توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Choudhry, N. A., & Choudhry, T. N. (2008). Customs tariff and trade controls: By Najib A. Choudhry ; revised by Tariq Najib Choudhry. Tariq Najib Corporation.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Choudhry, Najib A., و Tariq Najib Choudhry. Customs Tariff and Trade Controls: By Najib A. Choudhry ; Revised by Tariq Najib Choudhry. Lahore: Tariq Najib Corporation, 2008.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Choudhry, Najib A., و Tariq Najib Choudhry. Customs Tariff and Trade Controls: By Najib A. Choudhry ; Revised by Tariq Najib Choudhry. Tariq Najib Corporation, 2008.