(1988). New topics for secondary school mathematics: Materials and software / Department of Mathematics and Computer Science, North Carolina School of Science and Mathematics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)New Topics for Secondary School Mathematics: Materials and Software / Department of Mathematics and Computer Science, North Carolina School of Science and Mathematics. 1988.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)New Topics for Secondary School Mathematics: Materials and Software / Department of Mathematics and Computer Science, North Carolina School of Science and Mathematics. 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.