Designers and Art Directors Association of London & Clibborn, E. B. (1989). Tomorrow's designers today '89. Designers and Art Directors Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Designers and Art Directors Association of London و Edward Booth Clibborn. Tomorrow's Designers Today '89. London: Designers and Art Directors Association, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Designers and Art Directors Association of London و Edward Booth Clibborn. Tomorrow's Designers Today '89. Designers and Art Directors Association, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.