توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Tan, S. H. (1973). An investigation of errors in compositions written by Standards Four, Five and Six children in a primary school.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Tan, Soon Hock. An Investigation of Errors in Compositions Written by Standards Four, Five and Six Children in a Primary School. 1973.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Tan, Soon Hock. An Investigation of Errors in Compositions Written by Standards Four, Five and Six Children in a Primary School. 1973.