توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Schools Council, Nuffield Foundation, Scottish Education Department. (1973). Trees ; Stages 1 & 2: A unit for teachers. Macdonald Educational.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Schools Council, Nuffield Foundation, Scottish Education Department. Trees ; Stages 1 & 2: A Unit for Teachers. London: Macdonald Educational, 1973.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Schools Council, Nuffield Foundation, Scottish Education Department. Trees ; Stages 1 & 2: A Unit for Teachers. Macdonald Educational, 1973.