General Centificate of Secondary Education & Suffolk. County Council. (1987). Co-ordinated science lesson notes: Physics. Collins Educational.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)General Centificate of Secondary Education و Suffolk. County Council. Co-ordinated Science Lesson Notes: Physics. London: Collins Educational, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)General Centificate of Secondary Education و Suffolk. County Council. Co-ordinated Science Lesson Notes: Physics. Collins Educational, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.