Williams, J. (1998). Don't they know it's friday?: Cross cultural considerations for business and life in the gulf. Motivate Pub.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Williams, Jeremy. Don't They Know It's Friday?: Cross Cultural Considerations for Business and Life in the Gulf. London: Motivate Pub, 1998.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Williams, Jeremy. Don't They Know It's Friday?: Cross Cultural Considerations for Business and Life in the Gulf. Motivate Pub, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.