ERIC Information Analysis Center for Science and Mathematics Education, Suydam, M. N., & Weaver, J. F. (1972). Research on mathematics education (K-12) reported in 1971. ERIC Analysis Center for Science and Mathematics Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ERIC Information Analysis Center for Science and Mathematics Education, Marilyn N. Suydam, و J. Fred Weaver. Research on Mathematics Education (K-12) Reported in 1971. Columbus: ERIC Analysis Center for Science and Mathematics Education, 1972.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ERIC Information Analysis Center for Science and Mathematics Education, et al. Research on Mathematics Education (K-12) Reported in 1971. ERIC Analysis Center for Science and Mathematics Education, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.