(1968). Organic photochemistry 2; plenary lectures presented at the Second International Symposium on Photochemistry held at the Technical University Twente, Enschede, The Netherlands, 16-22 July 1967. Butterworth.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organic Photochemistry 2; Plenary Lectures Presented at the Second International Symposium on Photochemistry Held at the Technical University Twente, Enschede, The Netherlands, 16-22 July 1967. London: Butterworth, 1968.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organic Photochemistry 2; Plenary Lectures Presented at the Second International Symposium on Photochemistry Held at the Technical University Twente, Enschede, The Netherlands, 16-22 July 1967. Butterworth, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.