توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Davies, C. (1871). Intellectual arithmetic: Being an analysis of the science of numbers, with special reference to mental training and development. A. S. Barnes.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Davies, Charles. Intellectual Arithmetic: Being an Analysis of the Science of Numbers, with Special Reference to Mental Training and Development. New York: A. S. Barnes, 1871.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Davies, Charles. Intellectual Arithmetic: Being an Analysis of the Science of Numbers, with Special Reference to Mental Training and Development. A. S. Barnes, 1871.