Dalin, P. (1978). Limits to educational change. The Macmillan Press LTD in association with International Movement towards Educational Change.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dalin, Per. Limits to Educational Change. London: The Macmillan Press LTD in association with International Movement towards Educational Change, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Dalin, Per. Limits to Educational Change. The Macmillan Press LTD in association with International Movement towards Educational Change, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.