Bouri, J., & Barker Lunn, J. C. (1969). Too small to stream: A study of grouping in small junior schools. By J.Bouri and J.B.Lunn. National Foundation for Educational Research in England and Wales.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bouri, Janet, و Joan Catherine Barker Lunn. Too Small to Stream: A Study of Grouping in Small Junior Schools. By J.Bouri and J.B.Lunn. Slough, Eng.: National Foundation for Educational Research in England and Wales, 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bouri, Janet, و Joan Catherine Barker Lunn. Too Small to Stream: A Study of Grouping in Small Junior Schools. By J.Bouri and J.B.Lunn. National Foundation for Educational Research in England and Wales, 1969.
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