توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

General Centificate of Secondary Education & Suffolk. County Council. Co-ordinated science lesson notes: Chemistry. Collins Educational.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

General Centificate of Secondary Education و Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. London: Collins Educational.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

General Centificate of Secondary Education و Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. Collins Educational.