National Science Teachers Association. (1966). Helping children learn science: A selection of articles reprinted from "Science and Children". NSTA.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Science Teachers Association. Helping Children Learn Science: A Selection of Articles Reprinted from "Science and Children". Washington: NSTA, 1966.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Science Teachers Association. Helping Children Learn Science: A Selection of Articles Reprinted from "Science and Children". NSTA, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.