توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(1979). International Symposium on the Chemistry of Natural products: plenary lectures presented: At the Eleventh International symposium held at Golden Sands, Bulgaria, 17-23 Sept., 1978. Pergamon.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

International Symposium on the Chemistry of Natural Products: Plenary Lectures Presented: At the Eleventh International Symposium Held at Golden Sands, Bulgaria, 17-23 Sept., 1978. Oxford: Pergamon, 1979.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

International Symposium on the Chemistry of Natural Products: Plenary Lectures Presented: At the Eleventh International Symposium Held at Golden Sands, Bulgaria, 17-23 Sept., 1978. Pergamon, 1979.