British Institute of Adult Education\nNational Institute of Adult Education (England and Wales)\nNational Institute of Adult Continuing Education (England and Wales). (1935). Adult Education. National Institute of Adult Continuing Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Institute of Adult Education\nNational Institute of Adult Education (England and Wales)\nNational Institute of Adult Continuing Education (England and Wales). Adult Education. London: National Institute of Adult Continuing Education, 1935.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)British Institute of Adult Education\nNational Institute of Adult Education (England and Wales)\nNational Institute of Adult Continuing Education (England and Wales). Adult Education. National Institute of Adult Continuing Education, 1935.